Ok thats not really a roll pin. Its the hammer pivot pin and it broke at the grove for the hammer J spring. Roll pins would be the ones holding the rear of the trigger guard and the bolt catch. I have never had one break but thats just me. When you replace it squirt the hole thru the hammer full of a good grease before tapping the pin in. Actually an LR 308 uses a screw for the bolt catch and I wish all AR's did that as I don't like hammering on my guns if I can help it.
NRA Endowdment Life Member.....F&AM
Curio and Relics License Holder (FFL 03)
Gun confiscation will not happen in my lifetime.
"Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive. It would be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." C.S. Lewis
Last edited by string1946; 01-22-2014 at 02:54 PM.