Luth-AR MBA-3 Modular Carbine Stock Kit

The Luth-AR MBA-3 Modular Carbine Stock Kit (brand part no. MBA-3K-M) is Luth-AR’s most fully adjustable stock, built to be compatible with both Commercial and Mil-Spec diameter carbine buffer tubes on AR-15 and AR-10 platforms. It comes equipped with a 3-axis adjustable butt plate, an adjustable cheek rest, and adjustable length of pull, plus multiple sling mounting points and a bottom Picatinny rail for a rear monopod. An included anti-rattle screw keeps the stock secure on either buffer tube diameter, and because it’s sold as a complete assembly kit, it includes the Mil-Spec diameter buffer tube, carbine recoil buffer, carbine recoil spring, receiver end plate, and castle nut needed for a full installation.

Key Specifications

• Compatible with both Commercial and Mil-Spec diameter carbine buffer tubes.
• Features a 3-axis adjustable butt plate.
• Includes an adjustable cheek rest.
• Length of pull is fully adjustable.
• Adds a bottom Picatinny rail for mounting a rear monopod.
• Kit includes a Mil-Spec diameter carbine buffer tube.
• Kit includes a carbine recoil buffer.
• Kit includes a carbine recoil buffer spring.
• Kit includes a receiver end plate and castle nut.

Frequently Asked Questions

Does this fit AR-10 platforms too? Yes, it fits all .223 AR-15s and most .308 AR-10 carbine-style rifles.

Does this kit include the buffer tube and hardware? Yes, it’s a complete assembly kit with everything needed to install it on an AR-15 lower.

Buy the Luth-AR MBA-3 Modular Carbine Stock Kit

Order the Luth-AR MBA-3 Stock Kit from our Luth-AR lineup of AR-15 stocks and forends for fast, insured shipping direct to your door.