(1) A reciprocating device found in some double action revolvers which moves the hammer into a position in which there is no contact of either hammer and firing pin or firing pin and primer. It can also be used to position a safety device between the hammer and firing pin or primer in such revolvers.
(2) A spring loaded metal block which directly impinges on the trigger in Smith & Wesson revolvers. The rebound slide causes the trigger to return to its forward position and rebounds the hammer. It is the primary safety.
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