Product DescriptionThe Armaspec SMB (Sound Mitigation Buffer) Kit Gen 3 is a complete buffer system upgrade designed for AR-15 pattern firearms. Featuring the SMB-H3 buffer (5.6 oz), this kit is built to reduce recoil impulse and improve shooting comfort compared to standard mil-spec buffer springs and weights. It includes the key hardware needed to finish a rifle build or replace an existing buffer setup, including the SMB buffer assembly, buffer tube, endplate, and castle nut.Product Highlights Sound Mitigation Buffer (SMB) Gen 3 design for improved recoil absorption over OEM-style buffer systems SMB-H3 buffer weight of 5.6 oz for heavier-buffer tuning Complete kit includes buffer assembly, buffer tube, endplate, and castle nut Engineered to fit AR-15 pattern firearms Black buffer tube finish (as shown and listed)Specs Brand: Armaspec Product Type: Buffer kit Model/Series: SMB Buffer Kit Generation: Gen 3 Buffer Type: SMB-H3 (Sound Mitigation Buffer) Buffer Weight: 5.6 oz Compatibility: AR-15 pattern firearms Included Components: SMB buffer assembly, buffer tube, endplate, castle nut Color/Finish: Black UPC: 810048492756 Manufacturer Part Number: ARM268-H3Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.