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Luth-AR MBA-4 Stock Assembly is a carbine buttstock kit designed to fit AR-10 and AR-15 carbines. Lightweight buttstock constructed from glass-filled nylon with a built-in Picatinny rail. Features an anti-rattle set screw for a solid lock and adapts to existing Commercial and Mil-Spec buffer tubes. Package contents: Luth-AR MBA-4 Stock Assembly.
Specifications:
Notes: The MBA-4 Carbine buttstock is NOT interchangeable with A2 standard buffer tubes.
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Sign In to Set AlertThis is a bundled product that includes multiple components. The exact contents may vary - check the product description for more details.
• Complete assembly ready to use
• Multiple components included
• Value package pricing
Guide
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.
5 min read