Tag Archives: gun news

KelTec Bullpup Shotguns: Holding the Maritime Line off Korea

Florida-based KelTec announced last week that a major Pacific Rim maritime agency has once again selected the company’s tactical bullpup shotgun for use on patrol.

The South Korean Coast Guard has long used the well-reviewed (once you get used to it) KelTec KSG, with some 200 of the shotguns already in service, dating back to 2015. A new contract, signed in June, will continue that trend with the pump-action shotguns used across its patrol vessels.

The South Korean Coast Guard traces its lineage to 1953 during the Korean War and has some 10,000 personnel. Like the USCG, its Korean counterpart conducts law enforcement missions, polices the country’s maritime borders, and enforces fisheries regulations, among other tasks.

It has several large frigate-sized white-hulled cutters, including the 6,500-ton KCG Sam Bong and KCG Lee Cheong Ho, as well as numerous smaller patrol boats.

The Korean Coast Guard patrol vessel KCG Sam Bong (ARS 5001). She carries a forward 40mm Doosan DST “No Bong” twin DP Gun, a 20mm Sea Vulcan, six GPMGs, and a small arms locker– including KelTec KSGs. (Photo: KCG)

The KSGs are officially for non-lethal use, akin to how the Remington 870P is used for firing LA51 flash-bang warning devices in the USCG, but, you know, some slugs and buck are on the shelf just in case.

Per KelTec:

The KSG Tactical serves in a less-lethal role, firing rubber and impact rounds during maritime interdiction operations, including efforts to deter illegal fishing activity in Korean waters.

The South Korean Coast Guard also has several special response units such as the SSAT (Sea Special Attack Team), and the KSG-12 has been seen with them as well as in the hands of the Black Berets of the South Korean Army’s 707th Special Missions Group, used as a breaching gun with the latter.

The KelTec KSG was officially unveiled at the SHOT Show in 2011 and has undergone several generational changes while the line has simultaneously expanded.

KelTec Enters the PDW Pistol Game with a Modded SUB2000: Meet the Nub Sub

Florida-based KelTec continues its established trope of delivering strange yet intriguing new guns to the market, introducing the SUB-SDP last week.   

The pistol, dubbed the “Nub Sub” in the company’s own marketing materials, is based on the KelTec SUB2000 folding carbine, made into a pistol format and sporting a stabilizing brace instead of a stock on a shorter extension tube and a 6-inch barrel.

Set up to take Glock-pattern 9mm double stacks (i.e., G17, G19, G45), the base model ships with a Magpul 15-round magazine. Weight is 3.57 pounds, while the overall length goes from 10 inches with the pistol folded to 17.7 inches when extended.

While at first the Nub Sub seems funny, compare it to similar products such as the Flux Raider, which costs two to three times more, and the laughing slows.

It may not stop, but it at least slows.

Plus, you have to love the release video, done by the folks over at Offensive Marketing.

A Semi-Auto 12 Gauge for all Seasons: Meet the Smooth new Beretta A400 Solo

I got a sneak peek to try out the newest A400 series autoloading shotgun before Beretta debuted it last week at the Ducks Unlimited Expo.

Beretta has been an autoloading shotgun maker for over 70 years, having introduced the pioneering gas-operated system Model 60 in 1955. Fast forward to the 1990s, and the company’s superb AL390/391 series had picked up the mantle, but the company’s shotgun dev team thought it could do better.

After three years of development, 8,000 hours of engineering, 2,000 hours of testing, and more than 100,000 shells fired through prototypes and production models, the A400 Xplor Unico debuted in November 2009. Incorporating Steelium barrels, the B-Link gas operating system, and a Kick-Off recoil reduction system that utilized hydraulic dampers inside the stock, the new shotgun was set up for success, and, by the start of 2026, Beretta had 19 different models in the A400 family, priced between $1,949 and $3,699.

We’ve covered the A400 story for over a decade and have extensively reviewed the most popular model, the A400 Xtreme Plus. They are good guns.

But now we have the new A400 Solo, which has a much lower starting price ($1,549 MSRP in black synthetic) while keeping the same Steelium, B-Link, and Kick-Off trinity that has made the series a success.

The gun is designed as a sort of do-all “only sporting shotgun you need,” covering target and hunting uses, hence the “Solo” moniker. Even though it is a magnum (3-inch) chamber and not a bigger 3.5-inch super magnum, the Solo should have no issue with most waterfowl hunts, especially considering improvements in modern shotshell technology.

Meet the new Beretta A400 Solo in its most basic form: black synthetic, 28-inch barrel, 12 gauge. (All photos except noted: Chris Eger/Guns.com)

The Solo is engineered to thrive in the toughest hunting environments.  

Quick summary:

Beretta has nothing further to prove on the A400 series when it comes to high-value and soft-recoiling hunting shotguns. Yet, the Italian-made A400 Solo was just introduced and includes some nice updates to the platform like the cleaner-running B-Link Pro gas system and improved trigger pack. What can you say, the company makes good shotguns.

Head on over to my column at Guns.com for the full 1,800-word review. 

CMP to Sell (Modded) Military Surplus M14s

A Soldier with “Sykes Regulars,” 5th Battalion, 20th Infantry Regiment, 2nd Infantry Division, fires an M14 Rifle on March 7, 2019, at Nueva Ecija Province, Philippines. (Photo: U.S. Army)

The country’s clearinghouse for milsurp rifles and pistols announced over the weekend that a collectible American battle rifle will soon be available.

The notice from CMP:

By special authorization, the CMP is pleased to announce the future availability and sale of surplus M14 rifles. Prior to sale, the rifles will be modified to be permanently and irreversibly semi-automatic rifles. The modified semi-automatic M14s will be fully compliant with CMP enabling legislation authorizing the transfer and sale of military surplus .30 caliber rifles.

The CMP anticipates first order fulfilment in the late 2026 to early 2027 timeframe. More details will be published on the M14 order submission process, pricing, limits and sales channels (mail order and physical stores) at a later date. Proceeds from the sale of these and other historic firearms allow the CMP to teach firearms safety and marksmanship, conduct competitions, and provide scholarships and youth programs, nationwide.

Adopted in the late 1950s to replace not only the Garand, but also the M1 Carbine, M3 Grease Gun, and M1918 BAR, the Springfield Armory-designed M14 in 7.62 NATO was America’s battle rifle for a generation.

However, as the McNamara-era Pentagon looked to Vietnam, and followed the Air Force’s lead in 1963 by fielding Eugene Stoner’s much handier AR-15 as the M16, the M14’s time in the spotlight was limited, and production ended in 1965.

The 7.62 NATO M14, center, was the bridge between the .30-06 M1 Garand, top, and the 5.56 NATO M16, bottom. (Photo: Sgt. James Stanfield/USMC Museum)

U.S. Sen.  Cynthia Lummis (R-Wyo) said that 100,000 M14s would be made available to CMP, with agreement from the Army and ATF already secured.

“Proceeds will fund marksmanship training and youth programs nationwide, including at the new Wyoming State Shooting Complex in Cody, which will partner with CMP,” said Lummis.

While over 5 million Garands were produced, only 1.38 million M14s were made by H&R, Springfield Armory, TRW, and Winchester between 1959 and 1965. Of those, something like 479,000 were fed to “Captain Crunch” at Anniston Army Depot in the late 1990s.

Another 321,000 were given away as military aid over the years to countries such as South Vietnam, Estonia, Lithuania, Turkey, Greece, the Philippines, and Ukraine. Other rifles, partially demilled, were issued to JROTC units for drill purposes.

Further, the M14 was never fully removed from U.S. military use and remains in limited service with a variety of units, including the Army’s “Old Guard” on ceremonial duties in the Washington, D.C area, with the Service Academies for drill use, with assorted EOD units to deliver disabling fire at distance, and as line throwers and service rifles aboard Navy ships.

The M14 remains in service with honor guard units such as the Army’s Old Guard, left, assorted Service Academies as drill rifles, and with EOD units and in the small arms lockers of hundreds of Navy surface ships. (Photos: Department of War via DVIDS)

The Bigger Deal Behind the Announcement

The importance of this news goes far past some M14s hitting the collectors’ market.

The ATF has long enforced a “once a machine gun, always a machine gun” policy when it comes to receivers, meaning they could only ever become scrap or remain an NFA item forever. Presumably, CMP has cleared the planned conversion of these surplus select-fire M14s with the ATF to be “civilian-legal” and non-NFA items, which could be part of the “Special Authorization” mentioned in the press release.

This could open the door to apply the same logic to the millions of surplus 5.56 firearms (M16A1, A2, A4s, etc.) in military storage, provided Congress tweaks the organization’s charter to include that caliber (currently the CMP is only allowed to sell surplus U.S. military .30-caliber and .22-caliber rifles).

Going past CMP, it could signal the end of the once/always standard, which could mean big things in terms of importing and commercial sales.

Price?

The question on everyone’s mind is, what about the cost? Well, CMP runs Garands currently for $1,150, and those are reconditioned guns using reclaimed drill rifle receivers with new barrels and furniture. Every other grade is sold out. The popular commentary on the M14 pricing, which hasn’t been announced, ranges from $4,000 to $6,000 on assorted CMP and collector forums, likely with a lottery system such as used in early batches of surplus M1911 sales.

This could make brand-new cast receiver Springfield M1As, which start at about $1,500 for base models, a good alternative. Even Fulton and LRB-made M14 clones, using forged receivers, are out there for under $4K.

Italy Selling off 16,000 Vintage SMGs

The Italian Defense Industries Agency (L’Agenzia Industrie Difesa) recently announced it is accepting bids for 16,165 assorted Moschetti Automatici Beretta, or MAB, submachine guns. Brig. Gen. Massimo Boschetto detailed in a tender announcement that the guns are located at three naval bases, Taranto (7,512), La Spezia (8,404), and Augusta (249), and are being sold as-is/where-is and sans magazines.

The MAB, Beretta’s Model 1938 submachine gun in 9mm Para, was a big hit for the company and can still be found in limited service around the world.

Moschetti Automatici Beretta Model 1938 sub machine gun
The MAB was a staple not only of the Italian military during WWII but also saw widespread use with guerrilla/resistance groups of all stripes and ultimately was in service with over 30 nations. 
Moschetti Automatici Beretta Model 1938 sub machine gun
It was one of the more successful sub-guns of the conflict and was a favorite of Italian marine, mountain troop, and paratrooper units, seen here with “samurai” magazine holders. 

A brainchild of Beretta’s storied chief engineer Tullio Marengoni – who also designed the Beretta M15, M17, M35 and M51 pistols, the latter the basis for the famed Model 92 – the MAB was first fielded in 1938 and remained in production until the early 1960s when it was replaced in the company’s catalog by the M12 SMG.

It is believed over 1 million MAB/Model 1938s were produced in a dozen variants.

Moschetti Automatici Beretta Model 1938 sub machine gun
This case in the Beretta Private Collection is full of assorted Model 38s with early circa 1930s Model 38As to the left and more simplified Model 38/44s and 38/49s to the right. (Photo: Chris Eger/Guns.com)
Moschetti Automatici Beretta Model 1938 sub machine gun
Several MAB variants exist in U.S. museums and in the collection of the Springfield Armory National Historic Site, brought back from all over the globe. (Photos: SANHS)
Moschetti Automatici Beretta Model 1938 sub machine gun
Even after the Italian army and national gendarmerie (Carabinieri) hung up the MAB in the 1960s and 70s, it remained in service with the Italian air force, as seen in these images during a NATO exercise in 1985, vibing alongside U.S. Air Force Security Police at Aviano Air Base. (Photos: USAF via the National Archives). 
Moschetti Automatici Beretta Model 1938 sub machine gun
And it endured with the Italian navy for both base and ship defense, seen here aboard the training ship Amerigo Vespucci, which recently took part in the Sail 250 events in Norfolk, Baltimore, New York, and Boston. (Photos: Italian Navy).

While current ATF import regulations don’t allow for these beautiful and historic guns to be brought in intact for commercial sale, should a U.S. importer manage the high bid (which is likely), we could soon see some very nice parts kits show up over here.

Is the Gen 6 Glock 45 worth it?

Glock debuted the new Generation 6 models late last year, and we’ve evaluated the popular G45 variant over the past few months– with some interesting takeaways.

Any conversation about the Glock 45 that is longer than a fortune cookie scroll needs to start with the G19X.

Debuted in January 2018, the Gen 5 (ish) G19X was originally developed as Glock’s submission for the U.S. Army’s Modular Handgun System trials before being adapted for commercial sale. The company’s first “crossover” design (hence the “X”) blended a full-size G17 grip with a compact G19 slide assembly and a hybrid frame with a G19-length dustcover to accommodate it.

Just nine short months after the debut of the G19X, Glock delivered the Gen 5 G45 to market, which was basically a black G19X with some very minor tweaks.

Announced at the International Association of Chiefs of Police Conference, the G45 was billed as the perfect duty gun, blending all the best attributes of the G19 and G17 while adding Gen 5 features to boot —front slide serrations, ambi controls, a modular backstrap system, and the Glock Marksman Barrel. It soon became a smash hit in Glock’s catalog, especially after optics-ready MOS models were introduced in 2019.

Then Glock ended its Gen 5s in place of the transitional Gen V last November, then announced the new (and MOS-less) Gen 6 guns just a confusing month later.

We’ll get into it more below, but in a nutshell, the Gen 6 brings a different slide, internals, and trigger system but keeps everything dimensionally the same (so legacy holsters still work) while delivering a much better optics mounting system than MOS while retaining the same manual of arms and being reverse compatible with existing 17+ capacity double stack 9mm mags.

The Glock Gen 6 G45
The new Glock Gen 6 G45. (All photos: Chris Eger/Guns.com)
The Glock Gen 6 G45
As with other G45s, it is a hybrid design with a compact slide assembly and full-sized frame. 

Full 1,800-word review over in my column at Guns.com

Alpha Carry: My Range Time with the Kimber 2K11 Pro Comp in 9mm

Alabama-based Kimber went double-stack 1911 in 2024 after at least a 30-year run in the field of making single-stacks. We have reviewed a couple of these excellent pistols since then and are past the 3K round mark on our original test gun with zero (0) hiccups to report, leaving us feeling good headed into the new Comp series.

Released in January at the SHOT Show in either stainless (SST) or black in both 5-inch full-sized (Government) and 4.25-inch Pro (Commander) sizes, with flush-fit 20- and 19-round magazines, respectively, as the name would imply, the Comp models all sport a compensated barrel and slide.

Meet the stainless 2K11 Pro Comp SST, our test gun:

Kimber stainless 2K11 Pro Comp SST
The 4.25 model has an overall length of 7.79 inches. (All photos: Chris Eger/Guns.com)
Kimber stainless 2K11 Pro Comp SST
Weight is 33.4 ounces, even with a full-length rail on the frame’s dustcover.

This gun was a dream to shoot on the range. Full stop.

We ran a bit over 1,000 rounds through it and should probably talk about how we ran them. Coming after our trouble-free 3,000-round review of the full-length 2K11, we had a feeling the 2K11 Pro Comp would be able to comfortably digest just about any commercial load we could throw at it.

So that’s what we did.

A typical range box for our Pro Comp field trip:

Kimber stainless 2K11 Pro Comp SST
Note the mix of rounds. About the only thing that unites them is that they are factory 9×19 Luger/Para loads. We’ve got some Speer, Hornady, and Federal JHP in there, Federal Syntech in a few different loads (the colorful rounds), Remington bulk pack 115 FMJs, CCI Blazer Brass 115s, some Winchester 124 NATO loads, et. al. We would typically try to mix up the rounds in each magazine to include everything from 115s to 150s from numerous loads. No issues. 

If you prioritize a gun that looks great, shoots better than it looks, and gives you minimal heartburn while still being carryable in a pinch, the Kimber 2K11 Pro Comp is a “cry once, buy once” option.

It ran so well on the range and felt good in the hand that finding things to complain about is a chore.

Holsters for double-stack 1911-style railguns with a commander-length slide are a bit tough to find. The nose of the 2K11 Pro makes it even harder. Luckily, Kimber has gone the extra mile and stocks a variety of 2K11-specific OWB and competition holsters on their site from Blackpoint, Ghost Hydra, and Red Hill Tactical. Still, we’d love to see folks like Galco, DeSantis, Falco, Philster, Safariland, and Tenicor cranking them out as well, especially in an IWB format because this shorter 2K11 could make a great carry gun, giving the Staccato CS or HD C4X some serious competition.

Other than that, about the only sticking points that got under our skin were the fact that you had to leave the excellent rear sight at home when you opt for a red/green dot. Further, the mag release and safety lever were stiff right out of the box but wore in over time.

Candidly, I really dig it.

Kimber stainless 2K11 Pro Comp SST
The Kimber 2K11 Pro Comp. 

It’s a giant RMR, for your Ma Deuce

Michigan-based Trijicon won an Army contract to build an optic for the vaunted “Ma Deuce,” and the sight has made its first appearance in the field.

First announced in July 2021, the Army tapped Trijicon to deliver its Machine Gun Reflex Sight, or MGRS, specifically for use with the M2A1 .50 caliber heavy machine gun. It basically looks like a huge RMR with a flip-in magnifier.

Trijicon MGRS M155 Mounted Machine Gun Optic
Constructed of 7075-T6 aluminum, the MGRS is designed to withstand the jarring, rapid recoil produced by fixed and turret-mounted machine guns. It features a large, non-magnified objective lens with a 35 MOA segmented circle reticle. Centered within the reticle is a 3 MOA dot for precise aiming. A single CR123A battery powers the unit, providing more than 1,000 hours of continuous operation. A three-power magnifier is included for faster positive identification (PID) of potential targets downrange. (Photo Trijicon)
Trijicon MGRS M155 Mounted Machine Gun Optic
Type classified as the M155 Mounted Machine Gun Optic, or MMO, the sight attaches to the M2A1 .50 cal with a BE Meyers BOARS Mount using M1913 Picatinny rails. (Photo: U.S. Army Capability Program Executive – Ground Soldier Systems) 

The MGRS/M155 was recently fielded with the 126th Theater Public Affairs Support Element of the Michigan Army National Guard, reportedly the first Army unit to receive the optic. 

“Compared with the original iron sights, the M155 MMO illuminates targets, especially when the environmental elements are not the best,” said Sgt. Eleanor Osgood, a mass communications specialist with the 126th TPASE. “The red-dot sight is very useful in ensuring the round hits the target.”

Trijicon MGRS M155 Mounted Machine Gun Optic
U.S. Army Sgt. Eleanor Osgood, assigned to the 126th Theater Public Affairs Support Element, Michigan Army National Guard, uses the M155 mounted machine gun optic to zero the M2 Browning machine gun at Camp Grayling, Michigan, June 9, 2026. (Photo: Staff Sgt. Patrick Mayabb/U.S. Army National Guard)
Trijicon MGRS M155 Mounted Machine Gun Optic
The MGRS offers seven brightness settings, two facilitating the use of night-vision optics and five settings for fast adjustment to match current conditions, including a super-bright setting for bright daylight. (Photo: Staff Sgt. Patrick Mayabb/U.S. Army National Guard)
Trijicon MGRS M155 Mounted Machine Gun Optic
Zeroing is via 1 MOA adjustment increments, and the sight has 100 MOA total travel of adjustment. The MGRS includes two interchangeable range knobs that are ballistically calibrated for use on M2 series. When properly zeroed to the weapon platform, the range knob allows the user to dial the correct range as a mechanical BDC for more accurate engagements. (Photo: Staff Sgt. Patrick Mayabb/U.S. Army National Guard)
Assorted telescopic, night vision, and thermal sights, such as this AN/PAS-13 optic seen in 2017, have been used on the M2 series over the years, as would be expected, as the Browning-designed heavy MG dates back to the 1920s. (Photo: Sgt. Heather Doppke/U.S. Army)

Reviewing Smith’s new entry-level J-frame

Introduced in 1955, the original Bodyguard snub was a shrouded-hammer, alloy-framed Airweight .38 revolver that later became the Model 38, while its steel-framed counterpart was the Model 49.

The original Smith & Wesson Model 49 Bodyguard J-frame. Using a shrouded hammer with an accessible spur, it was DA/SA

Then, in 2014, the M&P Bodyguard .38 hit the scene with some significant changes, including a different internal lock work, an ambidextrous cylinder release, and a frame made lighter via the magic of polymer. Further, while the previous Bodyguard models were double-action/single-action with a humpback frame and shrouded hammer whose top spur could still be manually cocked, the new revolver was DAO with no access to the hammer.

In short, it was Smith’s answer to the Ruger LCR, which had entered the market as a DAO snub in 2009.

By 2026, the new Bodyguard 2.0 retains the core appeal of the original while adding several modern features, all in a 14.2-ounce package that carries five rounds of .38 SPL +P. You still have the ambi cylinder release and a lightweight uni-body design that comes from a mix of alloys and polymers, but you have several improvements from the circa 2014 design that we’ll cover below.

For now, let us meet the new Bodyguard 2.0 .38:

With a 1.875-inch stainless-steel barrel and a one-piece aluminum alloy upper frame ending in a polymer boot-style grip, the new Bodyguard 2.0 keeps the weight down to under a pound. Plus, it does not have an internal safety lock. (All photos: Chris Eger/Guns.com)

An ambidextrous, center-mounted cylinder release allows for straightforward operation with either hand, supporting intuitive use for both right and left-handed shooters.

The MSRP on the new S&W Bodyguard 2.0 is $449, while a Crimson Trace laser-equipped model runs $549, prices that are typically lower at retail.

Quick summary: An evolution of a design that has been chugging along for three quarters of a century, the newest Bodyguard model has better sights, trigger, and ergonomics than its predecessors while keeping just about everything that made it popular in the first place.

Meanwhile, Last Resort Tactical’s R.A.C. (Rapid Access Carrier) mimics the size of a medium-sized bifold wallet and keeps the speed loader (s) indexed for quick, consistent draws. Better than having a speed loader floating around in your pocket.

For the full review, head on over to my article at Guns.com.

The M39 Revolver Cannon, Spoils of War

Don’t let anyone tell you that a revolver is too slow. Besides blisteringly fast Single-Action shooters like Bob Munden and the iconic Jerry Miculek, there’s the M39 cannon.

We stumbled upon a great static training layout for the gun system of an F-101 Voodoo fighter at the Pima Air & Space Museum in Arizona while visiting the amazing facility.

That gun?

The M39 autocannon.

The system.

M39 cannon
What could go wrong? (All photos unless noted: Chris Eger/Guns.com)

It had a single barrel with a five-chamber cylinder that revolved at the six o’clock position parallel to the bore. Think S&W J-Frame on steroids with rounds that were more the size of a Red Bull can rather than .38 Specials.

M39 cannon
Note the revolving cylinder, about the size of a desk garbage can. 

Gas-operated with a piston that ejected the spent casing from one of the cylinder’s chambers while a spring-loaded rammer slid a new cartridge into an open chamber on each right-hand rotation, the gun was capable of firing 1,500 rounds per minute.

M39 cannon
20mm shells were fed via a link-less hopper system from the magazine down to the loading drum behind the cylinder. 
M39 cannon
Then you have all of the assorted relays, solenoids, gun camera, sight, and spaghetti wiring to link it all together and make it work. Remember, this system first flew in combat in 1952, just five years after the transistor was invented, and back when a big-screen TV had a 17-inch screen. 
M39 cannon
And it is all connected back to the stick in the cockpit. Flip the switch. Press the button. Briefly. Get out of the way of the debris. 

Backstory

The M39 had its roots in an experimental German Mauser 20mm MG213C revolving cannon design following World War II. To the victors go the spoils, boys!. A captured gun (No. V6/10) was rebuilt by the U.S. Naval Gun Factory in 1946, and a second, third, and fourth rebuild, all with evolving modifications, became the experimental U.S. T74 cannon.

These images of the MG213 and T74 via Chinn.

Via The Machine Gun History, Evolution, and Development of Manual, Automatic, and Airborne Repeating Weapons by Lt. Col. George M. Chinn, USMC, Prepared for the Bureau of Ordnance, Department of the Navy, U.S. Government Printing Office, 1951, unclassified July 1970 (Public domain)
Via The Machine Gun History, Evolution, and Development of Manual, Automatic, and Airborne Repeating Weapons by Lt. Col. George M. Chinn, USMC, Prepared for the Bureau of Ordnance, Department of the Navy, U.S. Government Printing Office, 1951, unclassified July 1970 (Public domain)
Via The Machine Gun History, Evolution, and Development of Manual, Automatic, and Airborne Repeating Weapons by Lt. Col. George M. Chinn, USMC, Prepared for the Bureau of Ordnance, Department of the Navy, U.S. Government Printing Office, 1951, unclassified July 1970 (Public domain)
Via The Machine Gun History, Evolution, and Development of Manual, Automatic, and Airborne Repeating Weapons by Lt. Col. George M. Chinn, USMC, Prepared for the Bureau of Ordnance, Department of the Navy, U.S. Government Printing Office, 1951, unclassified July 1970 (Public domain)
Via The Machine Gun History, Evolution, and Development of Manual, Automatic, and Airborne Repeating Weapons by Lt. Col. George M. Chinn, USMC, Prepared for the Bureau of Ordnance, Department of the Navy, U.S. Government Printing Office, 1951, unclassified July 1970 (Public domain)

The American M39 first flew in combat during the latter part of the Korean War as the T160 gun system in the “GunVal” program, which saw four such guns installed in modified F-86F Sabres. The guns had 460 rounds of ammunition, enough for about 4.5 seconds of fire. Each gun weighed 162 pounds.

The system, as installed on a Gun Evaluation (GunVal) F-86F-2, in 1952:

M39 cannon
(Graphic: August 1953 USAF Air Proving Ground Command report, declassified in 1979)

Vetted in combat, the guns were then first installed in production fighters starting in 1954 with the improved F-86H, which carried four M39s with 600 rounds of ammunition.

M39 cannon
The circa 1955 F-86H Sabre at Pima. Note the two forward cannon slots by the air intake. Two more are on the other side of the fuselage, leaving the pilot sitting over four 20mm cannons and 600 rounds of ammo. This particular F-86 remained in the New Jersey Air National Guard until 1965, when it was sent to the boneyard.

Ultimately, more than 35,000 M39s would be produced, and it was the standard gun not only for the F-86H but also the F-100 Super Sabre, F-101A/C Voodoo, and F-5/E Freedom Fighter/Tiger fighters, as well as the B-57B bomber.

While made by several companies over the course of two decades, the primary vendor for production was Pontiac. Yes, the car company.

While replaced in U.S. service with the six-barreled M61 Vulcan Gatling Gun, which fires the same ammunition up to four times faster while offering more longevity (M39s had to have their single barrel replaced after just 4,000 rounds), the old cannon is still in use with a few remaining F-5E operators, such as Brazil, South Korea, and Thailand.

Plus, the Philippine Air Force has recycled M39s out of old F-5s for use as towed ground support weapons, which is just awesome.

M39 cannon
Remember, at heart, it is just a big wheel gun! (Photos: Philippine Air Force).​​​
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