In that 1911, several levers must be moved by the trigger before they raise a spring-loaded blocking pin out of the locking notch in the firing pin.
On this gun, the firing pin is cammed up out of reach of the hammer and is fairly safe.įiring-Pin Locking Pins: Some otherwise good firearms whose manufacturers felt compelled to place blocking devices directly in contact with the firing pins, notably the Colt Series 80, use this system. A prime example of the cammed firing-pin safety is the Mauser HSC. In the case of firing pins attached to the hammers, this blocking bar kept both the hammer and the firing pin from the primer.Ĭam-up System: Firing pins that are cammed up out of the path of a hammer until the trigger is pulled or another safety system is disengaged use this method. Hammer Block: Other manufacturers saw transfer bars as backwards and employed a similar mechanism to block the hammer from the firing pin. In revolvers, this mainly appeared as a bar that lifted up when the trigger was pulled and was safe from the hammer due to a recess in the front of the hammer. This was supposed to eliminate misfires when the firearm was dropped on the hammer or in such a way that the blow caused the gun to fire. Transfer Bar: In the 1970s, gun accidents and disproportionate jury awards prompted many manufacturers to modify their designs to include a bar or other mechanism to transfer the hammer’s momentum to the firing pin only when the trigger was pulled. The 700 Remington has what looks like a striker, but it is a quasi-striker system because the firing pin is released by a camming action and not the sear. Some rifles, such as the Arisaka, Mauser, Mosin-Nagant and others on the Mauser design, also use strikers. Using an adequate dry-fire shell makes them less prone to breakage. Strikers usually share a weakness found in many shotgun firing pins, so I make it a practice to dry-fire a shotgun or any other striker-equipped firearm only when absolutely necessary. Of course, strikers never are acted upon by a hammer. It may have more of a loss to friction than do the swung pins. Since a striker is a straight-line device, it loses less energy to centripetal force. Strikers: These usually have a spring inside the body, therefore weakening the head to some extent. (This term is really unimportant when discussing problems, but might make a difference in the impression you give one who knows the difference). However, firing pins that have the sear notch built into them, like the P-08 Parabellum and many of the smaller automatics, are properly called strikers.
What virtually everybody knows is that a firing pin is the object that hits a primer to set it off. There are just too many designs of firing pins for them all to be listed and illustrated here, so we’ll just look at the types you’ll likely to run into.
0 kommentar(er)
