Trigger (firearms)
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A trigger is a mechanism that actuates the function of a ranged weapon such as a firearm, airgun, crossbow, or speargun. The word may also be used to describe a switch that initiates the operation of
Trigger mechanism in a bolt action rifle: (A) trigger, (B) sear, (C) striker spring, (D) striker.
Thompson submachine gun trigger
The double-crescent trigger on the MG 34, which enabled select fire capability without using a selector switch. Pressing the upper segment of the trigger produced semi-automatic fire, while holding the lower segment of the trigger produced fully automatic fire.
Colt Police Positive
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The Colt Police Positive is a small-frame, double-action revolver featuring a six-round cylinder, chambered for either.32 or.38 caliber. A.22 caliber model was also offered. Designed primarily for sal
Colt Police Positive in .38 S&W. Made in 1925
Colt Police Positive caliber .32 S&W Long/.32 Colt New Police made in 1938.
1905 advertisement for Colt's new Police Positive.