FN/FAL locking system uses which mechanism?

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Multiple Choice

FN/FAL locking system uses which mechanism?

Explanation:
The FN/FAL uses a tilting bolt locking system. When the bolt is forward, a cam-pin in the bolt carrier causes the bolt to tilt so its two locking lugs engage corresponding recesses in the receiver, locking the bolt and sealing the chamber against high firing pressures. As the firearm cycles, the bolt carrier moves rearward and the cam-pin action tilts the bolt in the opposite direction to unlock, allowing the bolt to retract for extraction and ejection. The term “lowering bolt” isn’t how this system is described, and a locking lug is a component of the system—the action is defined by the tilting motion that locks the lugs into the receiver.

The FN/FAL uses a tilting bolt locking system. When the bolt is forward, a cam-pin in the bolt carrier causes the bolt to tilt so its two locking lugs engage corresponding recesses in the receiver, locking the bolt and sealing the chamber against high firing pressures. As the firearm cycles, the bolt carrier moves rearward and the cam-pin action tilts the bolt in the opposite direction to unlock, allowing the bolt to retract for extraction and ejection. The term “lowering bolt” isn’t how this system is described, and a locking lug is a component of the system—the action is defined by the tilting motion that locks the lugs into the receiver.

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