Primary Arms Uppers Gun Parts
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43 months ago
This Upper is made by PSA to our Specs. 16" Chrome moly vanadium steel, chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a mid-length gas system. Barrel is finished off with an .750" diameter low-profile gas block, a Seekins PA 15" rail and an A2 flash hider. Includes bolt carrier group and charging handle. Brand Palmetto State Armory Barrel Coating Magnesium Phosphate Barrel Contour A2 Style Barrel Length 16" Caliber / Gauge 5.56 NATO Gas Block Low-profile Thread Pitch 1/2-28 Twist Rate 1 in 7" Barrel Material Chrome Moly Vanadium
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