This video reviews the Bear Creek Arsenal (BCA) GPx Piston Upper, highlighting its short-stroke gas piston system for improved reliability and cleaner operation on the AR-15 platform. The review details its 5.56 NATO chambering, 16" Parkerized M4 barrel with a 1:7 twist, adjustable gas block, 15" MLOK rail, side-charging BCA Bolt Carrier Group, and flash hider. The description emphasizes BCA's in-house manufacturing and the "Bear Den Guarantee." Affiliate links and discount codes for various shooting and tactical gear are also provided.
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