Winchester Prototype .410 Slide Action Shotgun
Winchester Prototype Shotgun 30-30 |
Winchester built this prototype bolt action shotgun in 20 gauge in 1919
Remington Model 11 “short pattern” trench gun prototype
Sjögren shotgun
Italian Cosmi
DEFOURNY OF BELGIUM
ALOFS MFG. CO. RELOADING/SPEEDLOADER ATTACHMENT
Einhorn Revolving Shotgun
Becker revolving shotgun
The Becker revolving shotgun is a German revolving shotgun, which utilizes an unusual blow-forward action that feeds ammo via a revolving cylinder. Although designed in 1899, the shotgun would not be produced until the 1920s by the firm Römerwerk. The shotgun operates via blow-forward action, in which the barrel “blows-forward” about an inch every time the weapon is fired, which automatically ejects the spent shell in the process.
The Becker is chambered in 16 gauge and is fitted with a six-shell cylinder, which only holds five shells, with the sixth chamber intentionally plugged up. Because the weapon forces gas back to eject the empty shells, having the cylinder loaded with six shells would cause a live shell to be ejected after the first shot. Because of this design, only the first four shells are automatically ejected and the last shell must be manually unloaded via an ejector rod.
Originally designed for hunting, it is believed that approximately 100 or even less Becker shotguns were manufactured.
Walther automatic shotgun
The Walther automatic shotgun is a rare toggle-action shotgun patented by the Walther brothers and manufactured by Deutsche-Werke in the interwar era.
Sjögren
The Sjögren Inertia is a semi-automatic shotgun invented by Carl Axel Theodor Sjögren in Sweden. Carl Sjögren had three patents for his design in 1900, 1903 and 1905. Shotgun was commercially introduced in 1907, and approximately 5000 were produced in Denmark until the end of production in 1909. It has been shipped commercially to several countries, including Germany, the United Kingdom and Russia. The Sjögren was a unique shotgun for its time, not only being a semi-automatic like the Browning Auto-5, but also because it utilized the inertia system used in many modern shotguns. An experimental rifle model chambered in 7.63mm was also presented, but did not receive any success on the market.
Soviet
Frolov Shotgun
These bolt-action shotguns, nicknamed “Frolovka” , are conversions of Mosin Nagant rifles into hunting shotguns, designed by engineer Pyotr Nikolaevich Frolov and manufactured in the 1920’s at TOZ. A surplus of Mosin Nagant rifles, most heavily battered during World War I and the Russian Civil War, were converted into 20 - 32 gauge shotguns. Such a measure allowed to quickly cover the lack of cheap hunting shotguns in Soviet Russia.
Winchester Model 1887
Another of John Browning’s famous designs, this shotgun was first developed in 1887 by demand of a repeating shotgun for lawmen and cowboys to use.
Since the Soviet Union already has lever-action rifles, this should also exist.More Shotguns 
SERIAL NUMBER N/A BARREL 25 3/4" CALIBER 16 GUAGE MANUFACTURED 1890. Believed to be the very FIRST semi-automatic shotgun ever produced with patents applied for and granted in 1889. This pre-dated John Browning application by 6 years. Invented and produced by brothers Victor Clair & Benoit Clair. The shot gun was produced at Saint Etienne France with highly figured 2 piece walnut stocks that are incredibly finely checkered. Vivid Damascus barrel with blade front sight. The high polish blue receiver is marked “CLAIR FRERES BTES S.G.D.F. A ST ETIENNE” on top rib at rear of receiver. The left side of the receiver has a monogram of 8 flushing arrows with “ECLAIR” on top and “AUTOMATIQUE” on underside. A tube magazine under the barrel is estimated to hold 5 cartridges. The only known other example is housed at the Liege Arms Museum. This example is a recent discovery and is in near pristine condition. ANTIQUE
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Luparas
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