WHAT'S OLD IS NEW AGAIN...ONLY BETTER!
Introducing three new Brownells Retro Upper Receivers,
detail-correct replicas of uppers from classic AR rifles


"PLUG-N-PLAY" GAS PISTON CONVERSION!
Brownells BRN-4 Upper Receiver
Built with all new-manufactured HK416-compatible parts. Drops onto any standard "mil-spec" AR-15 lower!
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