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An officer’s tool (also known as an A-tool, rex tool, or lock puller) is a forcible entry device used by firefighters and other first responders. Officer’s tools are designed to completely remove cylindrical locks from doors without causing major structural damage, allowing for direct access to the internal locking mechanism.
The sabot component in projectile design is the relatively thin, tough and deformable seal known as a driving band or obturation ring needed to trap propellant gases behind a projectile, and also keep the projectile centered in the barrel, when the outer shell of the projectile is only slightly smaller in diameter than the caliber of the barrel ...
The user pulled a lever underneath the barrel of the pistol, which pushed a rammer into the aligned chamber. [ citation needed ] Caplock revolvers mostly had mechanical devices with ramrods mounted on the frame of the revolver, which rammed the ball into the chamber of the cylinder by pulling a lever that was connected to the ramrod in various ...
Firearms use triggers to initiate the firing of a cartridge seated within the gun barrel chamber.This is accomplished by actuating a striking device through a combination of mainspring (which stores elastic energy), a trap mechanism that can hold the spring under tension, an intermediate mechanism to transmit the kinetic energy from the spring releasing, and a firing pin to eventually strike ...
Lock, stock and barrel is a figure of speech referring to the totality of a firearm as: the barrel through which the bullet is directed toward a target, the stock which provides a means of gripping the firearm, and the lock as the firing mechanism.
The magazine sits parallel to the barrel, fitting flush with the top of the receiver, and the ammunition is rotated 90 degrees by a spiral feed ramp before being chambered. The Heckler & Koch G11, an experimental assault rifle that implements caseless ammunition, also functions similarly with the magazine aligned horizontally over the barrel ...
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Rotating bolt is a method of locking the breech (or rear barrel) of a firearm closed for firing. Johann Nicolaus von Dreyse developed the first rotating bolt firearm, the "Dreyse needle gun", in 1836. The Dreyse locked using the bolt handle rather than lugs on the bolt head like the Mauser M 98 or M16.