{"product_id":"lantac-usa-ufa-s-ultimate-forward-assist-4140-steel-nitride-black-ar-15-lr-308","title":"LANTAC USA UFA-S Ultimate Forward Assist 4140 Steel Nitride Black - AR-15\/LR-308","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eLANTAC USA UFA-S Ultimate Forward Assist\u003c\/span\u003e\u003c\/strong\u003e is a premium drop-in replacement for the factory forward assist on AR-pattern upper receivers. It is precision \u003cstrong\u003eSwiss lathe turned\u003c\/strong\u003e from certified \u003cstrong\u003e4140 Cr-Mo steel\u003c\/strong\u003e and fully heat treated to \u003cstrong\u003e48-52 Rockwell C\u003c\/strong\u003e, giving the UFA-S noticeably smoother plunger action and far greater long-term durability than a standard stamped assembly.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eA low-glare \u003cstrong\u003eMelonite (Black Nitride)\u003c\/strong\u003e finish protects the entire assembly and matches both phosphate and nitrided uppers, while a redesigned \u003cstrong\u003espiral retaining pin\u003c\/strong\u003e replaces the factory slotted spring pin to resist shear and accidental push-out during hard use. The oversized, deeply textured pawl and spring-loaded plunger give positive, tactile engagement every time the bolt is manually seated.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe UFA-S is a direct swap for the standard forward assist on \u003cstrong\u003eAR-15, M16, M4, AR-10, and LR-308\u003c\/strong\u003e pattern upper receivers, requiring no fitting or modification. Proudly \u003cstrong\u003emade in the USA\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Lantac USA","offers":[{"title":"Default Title","offer_id":55075719479618,"sku":"194124","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_93a3401a-65d2-40a0-941e-ed66fc829987.png?v=1784755027","url":"https:\/\/centerfiresystems.com\/products\/lantac-usa-ufa-s-ultimate-forward-assist-4140-steel-nitride-black-ar-15-lr-308","provider":"Centerfire Systems","version":"1.0","type":"link"}