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Luth-AR MBA-3 Carbine Buttstock is an AR-15 carbine stock designed for use with commercial or Mil-Spec buffer tubes. It features adjustable length of pull, height, and cheek rise, plus a bottom Picatinny rail for accessory attachments. The MBA-3 is lightweight yet durable, includes sling attachment points, and uses a flat bottom index screw to prevent rattling. Compatible with AR-15 and AR-10 platforms; available in Black or Flat Dark Earth; 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