Product Description
Trigger Pivot Pin RetainerFits Ruger Mark 1 A-54 and A-100 frames, as well as Volquartsen Aluminum Mark 3 frames
Mark 2 and 3 Ruger frames use a wire spring type retainer but this can be used in its place on steel frames.
22/45 needs the wire retainer to hold the magazine latch in place.
Stainless version here
