hapidogbreath
Member
I have a DPMS pattern lower and an aftermarket upper. Everything went together fine but when I chamber a round it does not extract . Trying to hand mount a round on the bolt face is extremely difficult. Have not shot it. I think the extractor is not grooved wide enough for the base of the cartridge. Has anyone run into this?? Can I just replace the Bolt? If I do Do I have to Head-space the new bolt??