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Colt Single Action Army hammer at half cock. Half-cock is when the position of the hammer of a firearm is partially—but not completely—cocked. Many firearms, particularly older firearms, had a notch cut into the hammer allowing half-cock, as this position would neither allow the gun to fire nor permit the hammer-mounted firing pin to rest on a live percussion cap or cartridge.
The safety notch is a relief cut made in the tumbler at the base of the hammer, that allows the sear to catch and hold the hammer a short distance from the pin or cartridge primer, in a "half-cocked" position. The safety notch works first by allowing the handler to retract the hammer a short distance from the firing pin or primer, such that ...
[10] [page needed] A grip safety, sear disconnect, slide stop, half cock position, and manual safety (located on the left rear of the frame) are on all standard M1911A1s. [10] Several companies have developed a firing pin block safety. Colt's 80 series uses a trigger operated one and several other manufacturers, including Kimber and Smith ...
A Colt Single Action Army at half-cock, showing the external hammer and integral firing pin typical of many revolvers. A Marlin Model 1894 rifle. The hammer and firing pin are separate components. The M16 rifle uses an internal hammer. An external hammer is one that can be accessed by the operator during use.
Half-cock: The position of the hammer where the hammer is partially but not completely cocked. Many firearms, particularly older firearms, had a notch cut into the hammer allowing half-cock, as this position would neither allow the gun to fire nor permit the hammer-mounted firing pin to rest on a live percussion cap or cartridge. The purpose of ...
SR1911: features a full length 8.67" slide with a 5" barrel, a standard magazine capacity of 8+1 and a weight of 39 oz. Constructed from low-glare stainless steel.; SR1911 Commander (SR1911CMD): has a shorter overall length of 7.75", shorter barrel length of 4.25", reduced magazine capacity of 7+1, and lighter unloaded weight of 36.40 oz.
The lever provides for a safe method of lowering the hammer from its full-cocked, single-action position, to a "half-cock", double-action safe position where the hammer itself falls forward to a locking point about an eighth of an inch from the rear of the firing pin. Once de-cocked, it is physically impossible for the hammer to drop completely ...
Routine carry modes included leaving the hammer in the half-cock position, lowering the hammer to rest on a capped chamber, downloading by one cylinder, or lowering the hammer between the chambers of the cylinder. The first two options were (and are) extremely dangerous.