Hello all I am planning a .308 build. I started when my town had a gunshow. I purchased a upper receiver from a place called precisionarms. It is based on the dpms a3 style. I assume its either a clone or they just slapped their name on the side. Ayway I just purchased the dpms bolt carrier. Here are the parts i plan to buy to complete my upper Barrel- Rainier ultramatch ss 18" Bolt- Jp Enhanced bolt gas block- jp low profile Compensator-Battlecomp BABc Which type firing pin/cam/ retainer would i need? Would these components mesh together or no? Is there anything else I am not thinking of? Any help would be great !
