Hello members. I have a bushmaster xm15 rifle with the a2 upper and a 20 inch barrel. I want to swap it over to an a3 flattop upper. My question is will I have to headspace the chamber to do the swap or can I just unscrew the barrel and reinstall .... thanks all.
Hello gang. I have a bushmaster xm15 rifle with the a2 upper I want to swap it out for an a3 flat top. Will I have to headspace the barrel or can I just unscrew from the a2 and screw it onto the a3 upper.
Hello everyone. Was just informed by a Co worker about this site saw some great things and its awesome that the gun community is so informed and helpful to each other. Were not just a bunch of crazies.....