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AERO PRECISION M5 308 Carbine Buffer Kit Includes: Mil-Spec 7075-T6 Aluminum Buffer Tube, 6-position; .308 carbine buffer; .308 buffer spring; End plate and lock nut; Made in the USA. SPECIFICATIONS: Platform: M5; Weight: 10.2 oz; Buffer Length: 2.5 in; Buffer Weight: 3.8 oz.
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A comprehensive overview of every major component in an AR-15 build—including what's inside bolt carrier groups and parts kits—organized by assembly for new builders.
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Guide
A neutral overview of AR-15 buffer systems, covering carbine vs. rifle receiver extensions, buffer weights, springs, and how these parts affect cycling and recoil.
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