Floating Firing Pin

[′flōd·iŋ] [′fīr·iŋ ‚pin]

On a revolver, a firing pin that is mounted inside the frame, as opposed to being pinned to the hammer. (A device used in the firing mechanism of a gun, mine, bomb, fuse, projectile, or the like, which strikes and detonates a sensitive explosive to initiate an explosive train or a propelling charge.)

Revolver with Floating Firing Pin
Revolver with Floating Firing Pin