{"product_id":"b5-systems-sierra-k-ar-15-compact-stock-black-mil-spec","title":"B5 Systems Sierra K AR-15 Compact Stock - Black - Mil-Spec","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eB5 Systems Sierra K\u003c\/span\u003e\u003c\/strong\u003e stock is a purpose-driven, compact stock designed specifically for use on \u003cstrong\u003ePDW\u003c\/strong\u003e (Personal Defense Weapon) and other compact \u003cstrong\u003eAR-15\u003c\/strong\u003e platforms. Its low-profile design and \u003cstrong\u003eMil-Spec\u003c\/strong\u003e fit make it a natural choice for short-barreled rifles, pistol-caliber carbines, and feature-driven builds where a full-length stock would be too bulky.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eMeasuring just \u003cstrong\u003e5.63 inches\u003c\/strong\u003e long, \u003cstrong\u003e1.5 inches\u003c\/strong\u003e wide, and \u003cstrong\u003e3.8 inches\u003c\/strong\u003e tall, the Sierra K keeps your build trim while delivering a solid, repeatable cheek weld. At only \u003cstrong\u003e6.6 ounces\u003c\/strong\u003e, it adds minimal weight to the rear of the rifle, so the host stays balanced and easy to maneuver. The \u003cstrong\u003elow-profile adjustment\u003c\/strong\u003e is quick and intuitive, letting the shooter set length of pull without fuss.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eFinished in \u003cstrong\u003eBlack\u003c\/strong\u003e, the Sierra K is built in the \u003cstrong\u003eUSA\u003c\/strong\u003e by \u003cstrong\u003eB5 Systems\u003c\/strong\u003e and is well-suited to home-defense pistol-caliber ARs, suppressed SBRs, and any PDW-style build where compactness, control, and comfort all matter.\u003c\/span\u003e\u003c\/p\u003e","brand":"B5 Systems","offers":[{"title":"Default Title","offer_id":55050160898370,"sku":"180988","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_8ce07a4a-1c31-4e42-9318-f3f76bb97d06.png?v=1784714980","url":"https:\/\/centerfiresystems.com\/products\/b5-systems-sierra-k-ar-15-compact-stock-black-mil-spec","provider":"Centerfire Systems","version":"1.0","type":"link"}