thank you i wondered if RRA was its own proprietary thing. why do they do that? for that reason i wont buy from them.. (CAN YOU READ RRA?) i would just asume stay away form DPMS (call it a mental blockage) who should i look into getting components from? im looking at JP e bolt and now fulton armory carrier, mega upper and lower, APEX 15" handguard system ;D, 18" Rainier arms BBL, (SSA-E trigger someday :P)