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Luth-AR Mil-Spec Carbine Buffer Tube Assembly Kit for AR-10 rifles. Includes Mil-Spec carbine buffer tube, .308 buffer spring, and .308 buffer body, plus a latch plate and lock ring. Designed to build a new .308 AR or convert an existing AR to a Mil-Spec carbine recoil system.
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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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