{"product_id":"guntec-usa-ar-15-a2-buffer-tube-kit-w-buffer-spring","title":"Guntec USA AR-15 A2 Buffer Tube Kit w\/ Buffer \u0026 Spring","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eGuntec USA AR-15 A2 Buffer Tube Kit\u003c\/span\u003e\u003c\/strong\u003e is a complete fixed-stock buffer assembly for the \u003cstrong\u003eAR-15 platform\u003c\/strong\u003e. The drop-in package pairs an \u003cstrong\u003eA2-style aluminum buffer tube\u003c\/strong\u003e with a matching \u003cstrong\u003eA2 buffer\u003c\/strong\u003e and \u003cstrong\u003erifle-length buffer spring\u003c\/strong\u003e, giving builders everything needed to install or refresh a traditional A2 fixed buttstock setup on a standard AR-15 lower receiver.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe tube is machined from \u003cstrong\u003eT6 6061 aluminum\u003c\/strong\u003e for an excellent strength-to-weight ratio and finished in a low-glare \u003cstrong\u003ematte\u003c\/strong\u003e coating. It is engineered for a precise fit on standard AR-15 lower receivers, with the standard mil-spec threading needed to mount an A2 fixed buttstock and castle nut. The included \u003cstrong\u003eA2 buffer\u003c\/strong\u003e and \u003cstrong\u003erifle-length spring\u003c\/strong\u003e are weight-matched for reliable cycling with a fixed buttstock configuration, making this kit a straightforward solution for completing an AR-15 lower or replacing a worn A2-style assembly.\u003c\/span\u003e\u003c\/p\u003e","brand":"Guntec USA","offers":[{"title":"Default Title","offer_id":55344064102722,"sku":"ZA2TUBESET","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/alt_87b2791e-7917-410f-a846-f1a44e78ed1d.jpg?v=1785182705","url":"https:\/\/centerfiresystems.com\/products\/guntec-usa-ar-15-a2-buffer-tube-kit-w-buffer-spring","provider":"Centerfire Systems","version":"1.0","type":"link"}