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F14 Compass, lensatic, M1918 – Parts and equipment, 16 September 1927; F15 Machine gun clinometer M1917 Parts and equipment; F16 Sight, panoramic, machine gun, M1918 – Parts and equipment; F17 Device, aiming, mirror, M1918 – Parts and equipment, 23 November 1926; F18 Night lighting device, parts and equipment; F19 Board, deflection, M1; F20
Scope mounts are rigid implements used to attach (typically) a telescopic sight or other types of optical sights onto a firearm. The mount can be made integral to the scope body (such as the Zeiss rail) or, more commonly, an external fitting that clamp onto the scope tube via screw-tightened rings (similar to pipe shoes). The scope and mount ...
Attaching the barrel to the receiver using a barrel nut and a barrel with a shoulder is an alternative to action threads, which has been used in firearms such as the Sten gun and AR-15. Hand tools Quick barrel change systems is an increasingly popular alternative, as seen in for example SIG Sauer 200 STR , Roessler Titan or Blaser R8 .
The Browning Auto-5 was the first mass-produced semi-automatic shotgun. Designed by John Browning in 1898 and patented in 1900, [4] it was produced continually for almost 100 years by several makers with production ending in 1998. It features a distinctive high rear end, earning it the nickname "Humpback".
In 1907, Stevens was approached by John Browning and offered the design of a pump-action, hammerless, take-down, repeating shotgun that would become the Model 520 and 620 shotguns. [19] The Model 520, easily recognized by its distinctive double-hump receiver, first appeared in Stevens' 1909 Catalog #52 and remained in production until 1939.
While the well standardized Picatinny rail mount (and its less standardized predecessor the Weaver rail) is most known in the U.S., many European gun manufacturers offer proprietary scope base receiver mounting systems for their guns, for example Sako has tapered dovetails, Tikka use a 17 mm dovetail, [5] and there are other solutions such as ...
Browning BSS: Browning Arms Company: 10 gauge 20 gauge Belgium: 1971 Browning BPS: Browning Arms Company: 10 gauge 12 gauge 16 gauge 20 gauge 28 gauge.410 bore Japan: 1977 Browning Citori: Miroku Corporation: 12 gauge 16 gauge 20 gauge 28 gauge.410 bore Japan: 1973 Browning Double Automatic Shotgun: Browning Arms Company FN Herstal: 12 gauge ...
The locking bar system allows for even stress to be distributed and prevent canting of the scope mount. Another form of scope canting is caused by the rings themselves. Many Weaver-type mounts, including many Picatinny-type scope rings and even the Redfield Type, have either two or four screws on top of the scope ring that hold the scope in place.