{"product_id":"luth-ar-bs-10a-buffer-spring-223-5-56-ar-15-m16","title":"Luth-AR BS-10A Buffer Spring .223\/5.56 AR-15\/M16","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eLuth-AR BS-10A\u003c\/span\u003e\u003c\/strong\u003e is a \u003cstrong\u003ecarbine-length buffer spring\u003c\/strong\u003e built for AR-15 and M16 platforms chambered in \u003cstrong\u003e.223 Remington \/ 5.56 NATO\u003c\/strong\u003e. Designed as a direct-fit replacement or upgrade spring for use with an M4-type receiver extension and a collapsible buttstock, the BS-10A keeps your AR running smoothly by providing the correct tension for reliable cycling of the bolt carrier group.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eConstructed from \u003cstrong\u003e631 stainless steel\u003c\/strong\u003e, the BS-10A offers the corrosion resistance and strength needed for hard-use carbine applications. It is the same spring spec found in Luth-AR's Mil-Spec Carbine Buffer Assembly, making it an ideal standalone replacement when refreshing an existing buffer setup or completing a lower parts kit. Whether you are building a carbine from the ground up, troubleshooting cycling issues, or simply keeping a spare on the bench, this drop-in spring is a core component of any AR-15\/M16 carbine buffer system.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eDesigned for \u003cstrong\u003e.223 Remington \/ 5.56 NATO\u003c\/strong\u003e AR-15\/M16 carbines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFits \u003cstrong\u003eM4-type receiver extension\u003c\/strong\u003e with collapsible buttstock\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eMade from \u003cstrong\u003e631 stainless steel\u003c\/strong\u003e for corrosion resistance and durability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003eDrop-in replacement spring; no modifications required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14pt;\"\u003ePart of Luth-AR's Mil-Spec buffer line for AR platforms\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eWhether you are building, maintaining, or upgrading your AR-15 carbine, the \u003cstrong\u003eLuth-AR BS-10A buffer spring\u003c\/strong\u003e delivers the consistent, reliable action spring tension that your platform demands.\u003c\/span\u003e\u003c\/p\u003e","brand":"Luth-AR","offers":[{"title":"Default Title","offer_id":55233641185602,"sku":"186399","price":2.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_47e44f2f-5be2-480e-a0f8-1f59db813af6.png?v=1785008308","url":"https:\/\/centerfiresystems.com\/products\/luth-ar-bs-10a-buffer-spring-223-5-56-ar-15-m16","provider":"Centerfire Systems","version":"1.0","type":"link"}