{"product_id":"strike-industries-ar-enhanced-castle-nut-and-extended-end-plate-with-qd-black","title":"Strike Industries AR Enhanced Castle Nut and Extended End Plate with QD - Black","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eStrike Industries Enhanced Castle Nut and Extended End Plate with QD\u003c\/span\u003e\u003c\/strong\u003e is a drop-in upgrade pair for \u003cstrong\u003eAR-15\u003c\/strong\u003e and \u003cstrong\u003eAR-10\u003c\/strong\u003e lower receivers that swaps the factory castle nut and end plate to add a built-in \u003cstrong\u003eQuick Detach\u003c\/strong\u003e sling swivel socket while reinforcing buffer-tube retention.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eBoth pieces are machined from \u003cstrong\u003esteel\u003c\/strong\u003e and finished in a durable \u003cstrong\u003eblack\u003c\/strong\u003e coating to blend with the rest of your lower. The castle nut has been lengthened to engage more of the receiver extension's threaded area, providing a sturdier lock-up against the buffer tube and a cleaner sightline along the buttstock. The matching \u003cstrong\u003eextended end plate\u003c\/strong\u003e ties the system together and shifts the \u003cstrong\u003eQD socket\u003c\/strong\u003e rearward, moving the sling swivel clear of the shooter's support-hand webbing for a more comfortable carry.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eInstallation uses the same armorer's wrench and castle-nut staking procedure as the factory parts - no permanent modification to the lower is required. The Strike Industries Enhanced Castle Nut and Extended End Plate with QD ships as a matched \u003cstrong\u003esteel castle nut + extended end plate\u003c\/strong\u003e set, ready to install on any mil-spec or commercial-spec AR lower receiver.\u003c\/span\u003e\u003c\/p\u003e","brand":"Strike Industries","offers":[{"title":"Default Title","offer_id":55756790202690,"sku":"31105","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_224bea77-680a-4299-925d-f53eaa072f74.png?v=1785935653","url":"https:\/\/centerfiresystems.com\/products\/strike-industries-ar-enhanced-castle-nut-and-extended-end-plate-with-qd-black","provider":"Centerfire Systems","version":"1.0","type":"link"}