Product Description Upgrade your AR-10 pattern rifle with the Armaspec SRS Buffer Kit Gen 4, an enhanced buffer tube kit designed to provide smooth, quiet cycling and reduced felt recoil. This kit includes a mil-spec 7075-T6 6-position buffer tube, plus the required mounting hardware (steel castle nut and end plate) and Armaspec&';s self-contained multi-stage Stealth Recoil Spring (SRS) buffer system for a cleaner, drop-in buffer/spring replacement experience. Product Highlights Complete AR-10 buffer tube kit with Stealth Recoil Spring (SRS) multi-stage recoil buffer system Mil-spec 7075-T6, 6-position buffer tube for durable stock mounting and adjustment Self-contained SRS design helps prevent spring-on-tube contact for smoother, quieter operation Includes steel castle nut and end plate for a full lower-receiver stock assembly install Designed to fit AR-10 pattern firearms Specs Brand: Armaspec Product Type: Buffer tube kit w/ recoil buffer system Platform Compatibility: AR-10 pattern firearms Generation: Gen 4 Buffer System: Stealth Recoil Spring (SRS), multi-stage, self-contained drop-in buffer/spring replacement Buffer Tube: Mil-spec 7075-T6 aluminum, 6-position Included Components: SRS buffer system, 6-position buffer tube, end plate, castle nut MPN: ARM263-AR10 UPC: 810048492893 Country of Origin: USA Disclaimer: 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 products manufacturer.