The Advanced Technology Int. Commercial Buffer Tube Assembly fits most AR-15 and AR Variants. It is not compatible with AR10 or .308 Rifles. It is constructed of Military Type III Anodized, 6061 T6 Aluminum and is virtually indestructible. This package includes a steel castle nut and locking ring along with a AR-15 recoil plug and buffer spring. Made in USA.

Features :

• Fits most AR-15 and AR Variants
• Commercial Diameter Tube
• ,Constructed of Military Type III Anodized, 6061 T6 Aluminum,
• Virtually Indestructible