{"product_id":"b5-systems-sierra-k-receiver-extension-kit-7075-aluminum-5-position-black-srk-1660","title":"B5 Systems Sierra K Receiver Extension Kit, 7075 Aluminum 5-Position, Black SRK-1660","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\u003cp\u003eThe B5 Systems Sierra K Receiver Extension Kit is the proprietary mounting system designed for the Sierra K Buttstock. Built from mil-spec materials and finishes, this reduced-length kit is engineered for compact builds while maintaining durability and reliable function. It includes a 5-position receiver extension made from 7075 aluminum, along with the key buffer system and mounting components needed for installation. Proudly made in the USA.\u003c\/p\u003e\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eProprietary Sierra K mounting solution featuring a reduced-length, mil-spec diameter receiver extension\u003c\/li\u003e\n\u003cli\u003e7075 aluminum, 5-position receiver extension for strength and adjustable fit\u003c\/li\u003e\n\u003cli\u003eIncludes short heavy buffer (3.5 oz) and extra power spring for dependable cycling\u003c\/li\u003e\n\u003cli\u003eComes complete with castle nut and quick-disconnect (QD) end plate for secure mounting and sling compatibility\u003c\/li\u003e\n\u003cli\u003eMil-spec materials and finishes; Made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecs\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e B5 Systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Receiver Extension Kit (Sierra K)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e SRK-1660\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 814927024793\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReceiver Extension:\u003c\/strong\u003e Reduced-length, mil-spec diameter, 5-position\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReceiver Extension Material:\u003c\/strong\u003e 7075 Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Components:\u003c\/strong\u003e Receiver extension, short heavy buffer, extra power spring, castle nut, QD end plate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuffer Weight:\u003c\/strong\u003e 3.5 oz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e Made in the USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eDisclaimer: 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 product’s manufacturer.\u003c\/em\u003e\u003c\/p\u003e","brand":"B5 Systems","offers":[{"title":"Default Title","offer_id":44074509697146,"sku":"FLX-B5SRK-1660","price":111.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1679\/0365\/files\/270734417.jpg?v=1766950587","url":"https:\/\/tlooutdoors.com\/products\/b5-systems-sierra-k-receiver-extension-kit-7075-aluminum-5-position-black-srk-1660","provider":"TLO Outdoors","version":"1.0","type":"link"}