Tag Archives: barrel extension

So, Glock is Doing lots of R&D on Rifles

A series of innovatory rifle and carbine technology patents filed by Glock has been surging through the gun webs this week, causing a stir.

The fact is that, yes, a simple search of patents assigned to Glock Technology Gmbh over the past two years shows several for carbine systems logged originally with the European Patent Office. World-wide applications filed on behalf of inventors Elmar Bilgeri, Mario Kastrun, Josef Kroyer, Siegfried Sereinig, and Andreas Wutte, were registered by Glock in Austria, using the company’s Gaston Glock Park 1, 9170 Ferlach address.

Of interest, Bilgeri has a long history of firearm patents dating back to the 1990s with Steyr and is credited as being one of the minds that brought Col. Jeff Cooper’s Scout Rifle concept to life.

The patent drawings detail an adjustable gas block, a short-stroke gas piston system with operating rod, an ambidextrous magazine well for STANAG-style AR mags, a bolt assembly with a charging handle, and a barrel with a supported barrel extension.

More in my column at Guns.com.

That muzzle device, tho

(National Firearms Museum)

Labeled the “Combination policeman’s truncheon and extension pistol-barrel,” by its WWI-era inventor, Edward Norton Moor of Oakland, California, the device shown above is a hollowed-out impact weapon capable of coupling to the end of a revolver while still allowing the handgun to fire.

Not intended as a suppressor — an iffy prospect for most revolvers other than the gas-sealed Nagant M1895 and similar — Moor’s 1916 patent application for the device says plainly that, “The object of the invention is to provide an improved form of a policeman’s truncheon which will serve as a barrel extension of a pistol.”

Moor also registered patents on a number of other barrel extensions in the U.S. and France, as well as a fishing pole. (Photo: Google Patents)

I can’t find a reliable source for just how many of Moor’s devices were made, but, at least a few examples were produced by the Automatic Screw Company in California, with a 1919 patent date.