The Tiger Rock Inc. MBA-2 223/5.56 Rifle MBA-2 Luth-AR Buttstock is engineered for strength and functionality, optimized for performance on the range. Constructed from advanced glass-filled nylon, this lightweight buttstock is the ideal choice for achieving an agile rifle setup, weighing in at under one pound. Its fully adjustable design seamlessly fits A2 round tubes and is compatible with both A1 and A2 buttstocks, ensuring versatility. Lightweight stock for A2 Round Standard Tube mounting Interchangeable with A1 or A2 buttstocks Modern ergonomic design Featuring a sleek matte black finish Manufactured in the U.S.A. Compatible with 223/5.56 Rifle and AR-10 Upgrade your firearm setup with the reliability and performance of the MBA-2 buttstock.