LBE Unlimited AR-15 Buffer Tube Kit Features The LBE Unlimited Buffer Tube Kit bundles every part needed to replace an AR-15 buffer system in one purchase eliminating the hassle of sourcing a tube spring buffer end plate and castle nut separately. The six position mil-spec diameter buffer tube is compatible with the wide range of adjustable stocks already on the market giving builders flexibility in length of pull. A carbine length recoil spring is matched to work properly with the included H3 heavy recoil buffer smoothing the cycle of the action and helping tame the sharper recoil impulse some carbine length guns exhibit. The mil-spec receiver end plate and castle nut complete the assembly both finished to match the rest of the kit. Built with high quality components and precise manufacturing this kit reflects LBE s focus on durability and reliability for parts that see constant cycling and impact. The H3 buffer weight is a popular choice for shooters looking to smooth out recoil on a carbine length gas system without a full system redesign. Finished in matte black the kit blends seamlessly with most AR-15 builds regardless of other furniture or coatings. For builders or owners looking to replace a worn buffer system or simply tune their rifle s recoil impulse the LBE Unlimited Buffer Tube Kit offers a complete dependable solution. LBE Unlimited AR-15 Buffer Tube Kit Specifications Manufacturer: LBE Unlimited Model: Buffer Tube Kit Compatible Hosts: AR-15 Color: Black Finish: Matte Includes: H3 Buffer Buffer Tube Recoil Spring End Plate Castle Nut Pieces: 5 Available At: GrabAGun