hex drive washer head lag screws

At its core, the foundation bolt is responsible for several key functions within the firing mechanism. Primarily, it houses the firing pin, which strikes the primer of the cartridge to initiate the firing sequence. Additionally, the bolt itself locks into the chamber when the rifle is fired, containing the pressure created by the igniting gunpowder. This locking mechanism is crucial for the safe and effective operation of the firearm, allowing for the rapid cycling of cartridges and maintaining accuracy during high rates of fire.


m16 foundation bolt

m16

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