Aero Precision .458 SOCOM AR-15 Parts
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Aero Precision Assembled XL Upper Receiver for Big Bore AR-15 – Enlarged Ejection Port
AR-15 Upper for Big Bore Calibers - .450 Bushmaster, .458 SOCOM, .50 Beowulf If you're planning a big bore build for your AR-15, one area that often goes overlooked is...2 Options
Aero Precision’s XL Upper Receivers are a perfect match for your .458 Socom build, featuring an enlarged ejection port to ensure brass won’t get jammed coming out of the gun.
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