Luth-AR MBA-3K AR-15 .223/5.56 Carbine Buttstock Kit w/ Mil-Spec Buffer Assembly - Black

The Luth-AR MBA-3K is a complete carbine buttstock kit for AR-15 rifles chambered in .223 Remington / 5.56 NATO. Built around Luth-AR's popular MBA-3 modular buttstock, this all-in-one kit includes everything needed to swap or assemble a complete rear stock system on a standard Mil-Spec 6-position carbine buffer tube.

The MBA-3 buttstock is molded from high-strength glass-filled nylon to keep weight down without sacrificing durability. Its signature 3-axis buttplate provides length-of-pull (LOP) adjustment along with height and lateral positioning so the shooter can dial in a consistent cheek weld. An adjustable cheek riser adds up to 1 inch of height for use with optics or to fine-tune eye relief, while the stock extends the length of pull by an additional 1-1/16 inch. Designed to fit all .223 / 5.56 AR-style rifles, the MBA-3 is well suited for both general-purpose carbines and customized AR builds.

This kit bundles the MBA-3 buttstock with a complete .223 / 5.56 Mil-Spec carbine buffer assembly. The included Mil-Spec 6-position buffer tube is machined from 6061-T6 aluminum with a hardcoat anodized black finish, paired with a carbine buffer, buffer spring, latch plate, and lock ring for a straightforward, drop-in installation on any standard AR-15 lower.

Your purchase includes:

• Luth-AR MBA-3 Carbine Buttstock (Black, glass-filled nylon)
• Mil-Spec 6-Position Carbine Buffer Tube (.223/5.56, 6061-T6 aluminum, hardcoat anodized)
• .223/5.56 Carbine Buffer
• Carbine Buffer Spring
• Latch Plate and Lock Ring