Pre 1913 firing pin bushing for 20 Ga Archived Message Posted by Jim T on April 23, 2007, 10:52 am I'm in need of a 20 gauge pre 1913 firing pin bushing - that's the treaded plug which holds the firing pin in place. This is probally a tough find but the one on the Grade 3 needs to be replaced. Probally should replace the screw if one is available. Thanks again. Jim Message Thread: Pre 1913 firing pin bushing for 20 Ga - Jim T April 23, 2007, 10:52 am Re: Pre 1913 firing pin bushing for 20 Ga - Jason G. Harrison April 23, 2007, 11:51 am   Searching