If it's going to come out (some don't), try a large punch and a couple good smacks with a heavy hammer from the side, if it doesn't move in two or three hits, it most likely won't.
Yeah I need it for an S12, I got one of the first Chaos extended rails and mounted it to the rear of that (had to thin it down to fit rail groove) with a bead up front, well the first gen long rails weren't made right and you couldn't field strip it with it on. So that was a waste of money & time. :(
cool. i'll try and get it out and send it your way.
all thats left is the trigger. i f'ed up mine, must get new one!