The Luth-AR MBA-1 Modular Buttstock Assembly is a precision-engineered fixed stock designed for AR-15 and AR-10 platforms using a standard A2 rifle-length buffer tube. Lightweight yet rugged, the MBA-1 delivers superior ergonomics and shooter customization with adjustable cheek rise and length of pull (LOP), making it ideal for long-range precision setups.
Constructed from super strong glass-filled nylon, the MBA-1 maintains structural integrity while reducing overall weight. The cheek rest offers an extra 1" of rise, and the extended buttplate gives an additional 1 1/16" of LOP for optimal fit.
This fixed stock integrates seamlessly with .223 and .308 AR-style rifles and includes a compatible A1 buttstock screw for A2 buffer tubes.
Looking for a simpler design without adjustability? Check out the Luth-AR MBA-2 Fixed Rifle Stock for AR-15 & AR-10.
Features:
Fully adjustable LOP and cheek rise
Designed for A2 rifle-length buffer tubes (not included)
Includes A1 screw to secure to A2 tube
Additional 1" cheek height
+1 1/16” length-of-pull with extended buttplate
Weighs only 18.4 oz – roughly half the weight of similar adjustable stocks
Made from durable glass-filled nylon
Works with AR-15 and AR-10 rifles (.223 & .308 calibers)
Available colors: Black and Flat Dark Earth (FDE)
Incorporates castle nut and lock ring design elements
Specifications:
Buttstock Type: MBA-1
Application: AR-15 / AR-10 with Rifle-Length A2 Buffer Tube
Weight: 18.4 oz
Cheek Rise: 1" fully extended
Collapsed LOP: 10.5"
Extended LOP: 11.5"
Additional LOP: 1 1/16"
Color Options: Black, FDE
Tags: mba-1, modular, buttstock, assembly, for, rifle, buffer, tube, –, adjustable, lop, cheek, riser, luth-ar