Mitchell Defense Enhanced A5 Length Buffer Tube Anti-Tilt Dry Film Lubed Black. It features an internal anti-tilt lip that supports the rear of the carrier to reduce wear along with a dry film lubricant applied to enhance movement of the buffer assembly. Positional drain holes allow rapid drainage during maritime operations or wet conditions. With precise alignment and exceptional structural strength this A5-length extension offers improved reliability and recoil behavior over standard buffer tubes. Specifications for Mitchell Defense Enhanced A5 Length Buffer Tube: Manufacturer: Mitchell Defense Color: Black Finish: Anodized Fabric/Material: 7075-T6 Aluminum Gun Make: AR Platform Gun Model: AR-15 Features of Mitchell Defense Enhanced A5 Length Buffer Tube 7075-T6 aluminum construction for superior strength Anti-tilt internal lip supporting carrier movement Dry film lubricant for smoother cycling Positional drain holes for water evacuation A5-length tube for improved recoil control and reliability Mil-spec diameter for stock compatibility Package Contents: Mitchell Defense Enhanced A5 Length Buffer Tube What firearm models does the manufacturer say Mitchell Defense Enhanced A5 Length Buffer Tube is compatible with? The manufacturer suggests that Mitchell Defense Enhanced A5 Length Buffer Tube is compatible with AR-15Mitchell Defense 631001: Enhanced A5 Length Buffer Tube Anti-Tilt Dry Film Lubed Black