This expert-level review of the Brownells BRN-PROTO 5.56 delves into its historical significance as a recreation of Eugene Stoner's early direct gas impingement rifle prototypes. The video highlights unique features like the under-carry handle charging mechanism and straight 25-round magazines, comparing them to later AR-10 and AR-15 designs. It offers practical insights into ammunition selection for its 1:12 twist barrel and discusses the rifle's appeal to collectors seeking a vintage AR experience without the cost of genuine originals.
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