This video reviews the Palmetto State Armory (PSA) 10.5-inch upper assembly, highlighting its exceptional value for under $400 (without BCG/charging handle) or under $500 (complete). The instructor praises its robust construction, featuring a pinned Guesley gas block, Guesley rail system with anti-rotation tabs, and a PSA 4150 chromoly vanadium barrel with a 1:8 twist. It demonstrated 100% reliability with various ammunition types and suppressor use.
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