Within the limits of the magazine capacity the gun continues to fire so long as the trigger is held back, and stops firing whenever the trigger is released.
Full Automatic Fire.
Continued pressure on the trigger results in full automatic fire, which need be interrupted only by the four seconds interval required to replace emptied magazines by loaded ones.
During firing, before the magazine has been emptied, the gun stops at the beginning of the forward stroke, in the “ready to feed” position.
In this position the action is open and the chamber empty, but firing can be resumed on pulling the trigger.
General Note.
Before Firing.—See to it that bore is clear, working parts properly lubricated, and that tension of main spring is sufficient to avoid missfires.
After Firing.—See that gun is immediately unloaded, and that bore, working parts, and bearing surfaces are carefully examined, cleaned, and properly lubricated as soon as possible.
It is especially important to oil piston head and inside of gas cylinder; and to remove oil, and replace gas regulator cup.
Burrs found raised on any working part should be removed, and any roughening on a bearing surface should be smoothed down with fine emery or an oilstone.