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The MBA-3 adjustable Rifle Buttstock Assembly is a complete kit that includes everything you need to assemble a carbine buffer system on your .308/7.62 AR lower. The kit includes an MBA-3 Buttstock that features a 3-Axis Buttplate with Length-of-Pull adjustment as well as Height and Lateral adjustments, and an adjustable Cheek Rise in a lightweight, affordable carbine buttstock. Comes complete with Mil-Spec 6-position carbine Buffer Tube, .308/7.62 Buffer, .308/7.62 Buffer Spring, Latch Plate and Lock Ring.
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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.
12 min read
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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