{"product_id":"b5-systems-mps-1554-modular-platform-stock-flat-dark-earth-1913-picatinny-mount","title":"B5 Systems MPS-1554 Modular Platform Stock Flat Dark Earth - 1913 Picatinny Mount","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eB5 Systems MPS-1554 Modular Platform Stock\u003c\/span\u003e\u003c\/strong\u003e is a rugged, adaptable buttstock designed for rifle platforms equipped with a \u003cstrong\u003e1913 Picatinny rail interface\u003c\/strong\u003e rather than a traditional receiver extension tube. Finished in \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eFlat Dark Earth\u003c\/span\u003e\u003c\/strong\u003e, it brings B5's signature ergonomics and build quality to bullpup configurations, PDW setups, and other non-standard AR-pattern builds.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eAt its core is an \u003cstrong\u003eintegrated left-side folding steel hinge\u003c\/strong\u003e with \u003cstrong\u003ecolor-matched steel hardware\u003c\/strong\u003e and a \u003cstrong\u003eone-piece anti-rotation locking design\u003c\/strong\u003e. The stock folds flat against the side of the host firearm for transport and storage, then deploys with a solid, wobble-free lockup that holds position under recoil.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eShooter fit is handled by a \u003cstrong\u003ecollapsible length-of-pull adjustment\u003c\/strong\u003e offering \u003cstrong\u003e2-1\/4 inches\u003c\/strong\u003e of travel, allowing the stock to be tuned for body armor, cold-weather clothing, or individual shooter preference. The \u003cstrong\u003eadjustable spring-assist cheekpiece\u003c\/strong\u003e adds \u003cstrong\u003e1\/2 inch\u003c\/strong\u003e of height for a repeatable cheek weld behind magnified optics and night-vision devices.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eConstructed from durable \u003cstrong\u003epolymer\u003c\/strong\u003e, the Modular Platform Stock weighs in at \u003cstrong\u003e16.8 ounces\u003c\/strong\u003e with overall dimensions of \u003cstrong\u003e8.06 inches\u003c\/strong\u003e long, \u003cstrong\u003e1.76 inches\u003c\/strong\u003e wide, and \u003cstrong\u003e4.67 inches\u003c\/strong\u003e tall. B5 Systems offers the Modular Platform Stock in Black, Flat Dark Earth, Coyote Brown, OD Green, and Wolf Grey, giving builders a color-matched option for nearly any rifle project.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eWhether you're finishing a custom build, replacing a factory folder on a Picatinny-equipped platform, or upgrading a PDW or bullpup rifle, the B5 Systems MPS-1554 delivers the adjustability, durability, and refined ergonomics that have made B5 a trusted name among professional end users and civilian shooters alike.\u003c\/span\u003e\u003c\/p\u003e","brand":"B5 Systems","offers":[{"title":"Default Title","offer_id":55050841620802,"sku":"181590","price":158.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_1476b2fa-5fad-46eb-b2c1-2f5f2ac58567.png?v=1784715966","url":"https:\/\/centerfiresystems.com\/products\/b5-systems-mps-1554-modular-platform-stock-flat-dark-earth-1913-picatinny-mount","provider":"Centerfire Systems","version":"1.0","type":"link"}