{"product_id":"armaspec-srs-bb-buffer-tube-kit-gen-4-ar-15-7075-t6-black","title":"Armaspec SRS-BB Buffer Tube Kit Gen 4 AR-15 7075-T6 Black","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eArmaspec SRS-BB\u003c\/span\u003e\u003c\/strong\u003e is a complete \u003cstrong\u003eAR-15 buffer tube kit\u003c\/strong\u003e built around Armaspec's fourth-generation \u003cstrong\u003eStealth Recoil Spring\u003c\/strong\u003e (SRS) system - an enhanced, multi-stage recoil buffer designed to smooth the action cycle and reduce felt recoil. This kit bundles every component you need to mount a stock assembly on a mil-spec AR-15 lower receiver.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe kit's foundation is a \u003cstrong\u003emil-spec 7075-T6 aluminum 6-position buffer tube\u003c\/strong\u003e, offering the same carbine-length footprint and stock adjustment range as a standard carbine stock mount. A \u003cstrong\u003esteel castle nut\u003c\/strong\u003e and \u003cstrong\u003esteel end plate\u003c\/strong\u003e round out the mounting hardware, giving you everything required to lock the tube securely to the lower.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eAt the heart of the kit is the \u003cstrong\u003eSRS Gen 4\u003c\/strong\u003e - a multi-stage spring and buffer system that manages bolt travel more progressively than a standard spring and buffer weight, producing a smoother recoil impulse and a noticeably quieter action. It is a direct drop-in replacement for a standard \u003cstrong\u003eAR-15\u003c\/strong\u003e carbine buffer and spring. The tube carries a matte black finish that pairs cleanly with most factory and aftermarket lowers.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eWhether you're building a new carbine, replacing worn components, or upgrading from a standard buffer and spring, the Armaspec SRS-BB kit delivers a matched, complete set - tube, multi-stage recoil system, castle nut, and end plate - all in one package.\u003c\/span\u003e\u003c\/p\u003e","brand":"Armaspec","offers":[{"title":"Default Title","offer_id":55169861714242,"sku":"188243","price":94.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_e48285f6-62fc-47fc-86ce-95782aedbbe6.png?v=1784905970","url":"https:\/\/centerfiresystems.com\/products\/armaspec-srs-bb-buffer-tube-kit-gen-4-ar-15-7075-t6-black","provider":"Centerfire Systems","version":"1.0","type":"link"}