Manual

32
OPERATING PRINCIPLE
The weapon is loaded and cocked, with the safety off.
Pulling the trigger releases the hammer, which strikes the firing pin.
The cartridge is ignited. The powder gases thus generated drive the
bullet out of the barrel. At the same time, these gases also exert pressure
on the cartridge case.
This causes forces to act on the bolt head face; a portion of these forces
is transmitted to he receiver and a portion to the bolt head carrier, via
the locking piece; the balanced angular ratio of the locking piece and
barrel extension results in a delayed recoil movement of the bolt head.
This guarantees that the bolt keeps the barrel locked until the bullet has
left the muzzle