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AR-15 receiver with bullet button. A bullet button is a device used to remove a magazine in a semi-automatic rifle, replacing the magazine release with a block which forces the user to remove the magazine by using a tool rather than the magazine release button.
The first company to make straight pull bolt-actions for .22 caliber was J. G. Anschütz; the action is specifically the straight-pull ball bearing-lock action, which features spring-loaded ball bearings on the side of the bolt which lock into a groove inside the bolt's housing. With the new design came a new dry-fire method; instead of the ...
The grip angle is the same since the SD pistols use the same magazines as the Sigma pistols (though with different magazine bottom plates). The trigger guard is larger, and the SD line has industry-standard accessory rails rather than a proprietary rail. In December 2023, Smith & Wesson released the SD9 2.0.
The caliber (CAL .45, CAL .30, or CAL .50) was painted in bold lettering in the upper left corner. The gross weight of the box in pounds and its volume in cubic feet was painted in the lower left corner and the Ammunition Lot information (manufacturer code and lot number) was painted in the lower right corner.
Magazine: A magazine is an ammunition storage and feeding device within or attached to a repeating firearm. Magazines may be integral to the firearm (fixed) or removable (detachable). The magazine functions by moving the cartridges stored in the magazine into a position where they may be loaded into the chamber by the action of the firearm.
The bottom metal also frequently incorporates the trigger guard, [1] for instance on the Mauser 98 and M1 Garand, although a trigger guard by itself is not considered a bottom metal. In repeating firearms with internal magazines , the bottom metal serves as the magazine floorplate and contains the spring and follower, either as a fixed solid ...
A magazine disconnect feature does not allow a user to fire the gun when the magazine is withdrawn (even partially) by means of a mechanism that engages an internal safety such as a firing-pin block or trigger disconnect. [2] [13] An early example of its use was in the Browning Hi-Power pistol. [14]
Rim lock is where the rim of the shell casing gets caught on the extractor groove of the casing underneath it. It is a common issue for calibers with large rims, such as 7.62×54mmR , or guns that have been rechambered for cartridges shorter than intended without replacing the original magazine with one that compensates for the shorter round.