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The anatomy of a gunstock on a Ruger 10/22 semi-automatic rifle with Fajen thumbhole silhouette stock. 1) butt, 2) forend, 3) comb, 4) heel, 5) toe, 6) grip, 7) thumbhole A gunstock or often simply stock, the back portion of which is also known as a shoulder stock, a buttstock, or simply a butt, is a part of a long gun that provides structural support, to which the barrel, action, and firing ...
For a gun firing under free-recoil conditions, the force on the gun may not only force the gun backwards, but may also cause it to rotate about its center of mass or recoil mount. This is particularly true of older firearms, such as the classic Kentucky rifle , where the butt stock angles down significantly lower than the barrel, providing a ...
Recoil is also a key issue in rifle stock design. Heavy recoiling rifles should have wide butts, with a good recoil pad to absorb the force of recoil, and a comb that is straight or slopes down towards the action, so that it does not push into the shooter's face under recoil.
The M16 uses a "straight-line" recoil design, where the recoil spring is located in the stock directly behind the action, [83] and serves the dual function of operating spring and recoil buffer. [83] The stock being in line with the bore also reduces muzzle rise, especially during automatic fire.
The AR-15's straight-line recoil design, where the recoil spring is located in the stock directly behind the action, [59] and serves the dual function of operating spring and recoil buffer. [59] The stock being in line with the bore also reduces muzzle rise, especially during automatic fire. Because recoil does not significantly shift the point ...
The M16 is a select-fire, 5.56×45mm, air-cooled, internal-piston gas-operated, magazine-fed rifle, with a rotating bolt and straight-line recoil design. Above all else, the M16 was designed to be a lightweight assault rifle and to fire a new lightweight, high-velocity small caliber cartridge to allow the soldier to carry more ammunition. [ 36 ]
The usual recoil system in modern quick-firing guns is the hydro-pneumatic recoil system. In this system, the barrel is mounted on rails on which it can recoil to the rear, and the recoil is taken up by a cylinder which is similar in operation to an automotive gas-charged shock absorber , and is commonly visible as a cylinder mounted parallel ...
Later in the 1870s, a Swedish captain called D. H. Friberg patented a design which introduced both flapper-locking and the fully automatic recoil operated machine gun. [7] Furthermore, in 1875 a means of cocking a rifle through recoil was patented through the patent agent Frank Wirth by a German called Otto Emmerich. [8]