The TacFire MAR050-B 223/5.56 Rifle Mil-Spec Buffer Tube Kit transforms your AR-15 or M4 platform with unmatched performance and reliability. This comprehensive kit features a six-position adjustable stock for personalized comfort, making it advanced yet user-friendly for any shooting experience. 6-position adjustable stock for ergonomic comfort Mil-Spec buffer tube for smooth operation Includes 3 oz. buffer for effective recoil management Standard end plate for easy sling attachment Secure castle nut ensures stability Enhance your shooting precision and experience with the TacFire MAR050-B Rifle Buffer Tube Kit.