Articles from 475AR10

  1. Pistol Caliber Carbines

    For years I have had a 45ACP DI (gas operated) AR-15 which runs great and is very accurate, but as of late I wanted to add a couple of uppers in 9mm and 45GAP so I contacted Ron Williams of RMW XTREME in Florida to build the uppers. Ron was also the one that built my 45ACP upper so I knew he was the person to go to. I did not want to go with a blowback upper because of the need to run a very heavy buffer and recoil spring, in speaking with Ron he builds all of his pistol caliber DI uppers to...
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