Tag Archives: 5.56 NATO

Springfield Armory Enters the Retro Carry Handle Space

Back in 1986, the Colt AR-15A2 HBAR was where its at…

Back 20-25 years ago, fixed carry handle A2 style ARs with a 20-inch barrel were about the only thing you could find on the black rifle market, and even those were typically neutered by the Federal AWB (which ran 1994-2004) so that they didn’t have such evil features as a bayonet lug and shipped with 10-round mags. Still, they were good enough for DCM/CMP matches.

These days, with the M4 being the standard post-9/11, rifle-length fixed carry handle ARs are hard to find and only a few niche sources exist to get one– Bushmaster, Fulton, and H&R (the latter sold through PSA)– with prices starting at $1,299, and they are frequently sold out.

Talk about not being in Kansas anymore…

So, interestingly enough, Springfield Armory just introduced a very nicely done homage to the M16A2 in the form of the SA-16A2, which includes all the correct throwback features (forged 7075 T6 aluminum receivers, a 20-inch 1:7 twist government profile chrome lined barrel, round handguards with heat shields, a full-length fixed stock with rear compartment, a fixed A2 carry handle with adjustable/dual aperture sight, A2 F-height front sight post/gas block, rifle length gas system, a full-auto profile BCG with a phosphate exterior with a hard chrome-lined interior, mil-spec trigger, and a hollow GI grip) you expect.

The SA-16A2. (Photo: Chris Eger/Guns.com)

The SA-16A2 has some upgrades to enhance performance that the 1980s M16A2 never did, including an Accu-Tite tensioning system to cut down on the slop between the upper and lower receivers and M4 feed ramps.

The lower receiver features “Government Property” rollmarks as well as a non-functional “Burst” selector marking in an ode to the M16A2. (Photo: Chris Eger/Guns.com)

A full look in my column at Guns.com.

‘Father of the PDW’ Passes: Mack Gwinn Jr, Dies at 79

Florida-born Mack W. Gwinn, Jr., the son of a retired Army officer, joined the U.S. Army Special Forces in 1961 and served until 1972, a period that included seven deployments to Vietnam, earning several Purple Hearts and the Bronze Star in the process.

Then, on return stateside following the war, he developed the Bushmaster Arm Pistol. The concept, a pistol-sized gas piston firearm that used an intermediate round rather than a pistol caliber, could rightly be described as one of the first personal defense weapons and predated the initial crop of large format AR handguns such as the OA-93 by a generation.

Moving on from Bushmaster, Gwinn went on to take out several patents on magazines as well as design and develop concepts for numerous other firearms applications including the SSP-86 pistol (see the Magnum Research Lone Eagle), developed the QCB system that FN used for the modern M2HB/M3 .50 cal, and lots of other neat stuff.

Capt. Mack W. Gwinn, Jr. (U.S. Army, Ret.), 79, died on March 11, 2024, at the Maine Veterans’ Hospital in Togus.

Common use and the 223

A lot of folks feel that the .223/5.56 cartridge only became a thing in consumer gun culture in 2004, the year the Federal Assault Weapon Ban expired and the masses who had been forbidden from picking up such “evil black rifles” surged forward and purchased something like 20 million of them since then.

The thing is, the round and the rifles had been popular long before that moment. In fact, they have been on the consumer market since 1963– now some 60 years ago.

First developed from a commercially available sporting cartridge, the .223 Remington and its 5.56 NATO cousin, along with the guns that use them, are among the most popular in circulation.

The story began in 1950 with the rimless, bottlenecked .222 Remington, an accurate and flat-shooting varmint and target cartridge that “Big Green” introduced with a companion Model 722 bolt-action rifle chambered for the new round. That well-loved and still viable round by May 1957 had been tweaked to become what was dubbed the .222 Remington Special and was soon tapped by upstart rifle maker ArmaLite for its prototype new AR-15 rifle – with the “AR” standing for the first two letters in the company’s name. 

The lightweight carbine was based on Eugene Stoner’s AR-10 of the same manufacturer.

In March 1958, ArmaLite submitted 10 new AR-15s chambered in .222 Special to Fort Benning for the Infantry Board field trials, but the Army wasn’t enamored with the gun.

Soon the company sold the rights to the handy little carbine to Colt, which started making the guns in late 1959, with small orders filled with Malaysia and India.

The first consumer review hit the stands in the October 1959 “Guns” magazine, with the testers using ArmaLite AR-15 Serial No. 000001, chambered in .222 Rem Spl. During roughly the same timeline, the .222 Rem Spl became known as the .223 Remington, to avoid confusion.

Then, at a now-famous Fourth of July party in 1960, General Curtis LeMay, Chief of Staff of the Air Force, was given a chance to zap watermelons with a new-made Colt AR-15 and soon recommended that the service purchase enough of the new guns to replace aging WWII-era M2 Carbines used by the Air Force’s Security Police. In December 1961, the first contract for 1,000 guns was issued by the Pentagon, and just two years later, the Army was onboard for adopting the rifle in select-fire format, dubbed the XM16E1 and then later the M16.

By 1963, Colt was advertising the AR-15 Sporter, later dubbed the Model R6000 SP1 Sporter Rifle, to the consumer market.

“If you’re a hunter, camper, or collector, you’ll want the AR-15 Sporter,” reads the circa-1963 ad copy. By 1969, something like 15,000 SP1s had been made.

In 1969, only a few years after the SP1 was introduced, ArmaLite was selling a completely different semi-auto AR chambered in .223 – Eugene Stoner’s AR-180– to get around Colt’s patents. Already the AR-15 was getting competition.

Besides the SP1 and AR180 semi-autos, in 1973 – just a decade after the first .223 sporters hit the consumer market –Ruger introduced the Mini-14. Styled on the M14 but downsized to use the smaller .223 round, one of the Ruger’s rifle’s chief engineers was L. James Sullivan, a man who had done lots of work on the AR-15 previously.

About $50-$100 cheaper than other .223s on the market in 1973 dollars, and not as “scary looking,” Ruger’s downsized Garand/M14-ish rifle was a big hit with both police and consumers. Well over 3 million Mini-14/Ranch Rifles have been made since 1973.

In the early 1970s, if you were looking for a .223 sporter, you could get a side-folding ArmaLite AR-180 for $294, a Colt SP1 for $252, or a Ruger Mini-14 for $200, as seen in this vintage Shooter’s Bible.

And that was 50 years ago…

The HK SL8 Fever Dream is still Alive

Much as the HK91 was a civilianized version of the G3, soon after the very sci-fi looking G36 hit the market in 1997 HK moved to give hungry fans what they wanted.

I mean, who wouldn’t want a G36, right?

First introduced in 2000, the .223 Rem caliber SL8 used a short-stroke piston actuated gas operating system with a 20.8-inch cold hammer forged heavy barrel. Semi-auto with a grey carbon fiber polymer thumbhole stock– it debuted during the Federal Assault Weapon ban– with an adjustable cheekpiece and buttstock, the initial version of the rifle included a removable Picatinny rail, an ambi charging handle that folded into the centerline of the gun, and adjustable sights.
So this is the “G36” consumers in the U.S. got stuck with:

The original SL8-1. Originally imported 2000-2003 and then again in 2007-2010, the first generation model now known as the SL8-1 included 10-round mags and a grey thumbhole stock.

In 2010, HK updated the design to the SL8-6 which ditched the space cadet grey for an all-black format and added an elevated Pic rail/carrying handle. It also had a vented handguard, closer to the G36 original. Unfortunately, this model was only imported for a year.
Now, the SL8-6 is back, and it is still kinda wonky but, if you call people like TBT, they can turn it into something great.

KAC getting a lot of Pentagon Love

The aircrew of the Florida-based Coast Guard Helicopter Interdiction Tactical Squadron stand for a photo after the 500th recorded drug bust in the Eastern Pacific Ocean, March 11, 2017. U.S. Coast Guard photo. Note the M107A1 with mounted AN/PEQ-15 aiming laser in the foreground, the M110 7.62x51mm sniper rifle with can in the background, and the fact that the crew names and weapons’ serials have been blurred for OPSEC/PERSEC.

In the past week, the DOD has announced two big contracts for Knight’s Armament Company in Florida.

For those who aren’t familiar with Reid Knight’s KAC, just keep in mind that the company served as the final home of Eugene Stoner, who redesigned his original AR-10 there as the new and very much improved SR-25. That 7.62 NATO precision rifle went on to pull down the Army’s XM110 Semi-Automatic Sniper Rifle competition in 2005.

The resulting M110 has gone on to be used not only by the Joes but also with the Navy EOD and Specwar community, the Marines in a designated marksman role, and the Coast Guard’s HITRON interdiction teams.

It is so well-liked that, even while the Army is picking up HK-made G28s for the new M110A1, they are still buying M110s from KAC, announcing a $13M contract for the rifles last week. 

Quiet Time

U.S. Marines assigned to Scout Sniper Platoon, Battalion Landing Team 3/2, 26th Marine Expeditionary Unit (MEU), conduct an M4 Carbine live-fire exercise on the flight deck of the USS Kearsarge, at sea, July 18, 2013. (U.S. Marine Corps photo by Sgt. Christopher Q. Stone, 26th MEU Combat Camera/Released)

And in other related news, the Marines just issued a $25M contract to KAC for 5.56 NATO suppressors for their M4/M4A1s and M27 IARs. 

When it comes to suppressor-use by its warfighters, the Marines have been consistently striving to make them the standard rather than the exception. In 2016, the expeditionary-focused service moved to equip every element of a test battalion, from combat engineers to headquarters units, with suppressed weapons after company-level trials yielded results.

By 2017, they were exploring the option of picking up enough to outfit all of their battalions. The new contract will go a long way towards that if all the options are used.