{"product_id":"proof-research-ar-style-6mm-arc-16-1-7-5-twist-stainless-threaded-barrel","title":"Proof Research AR-Style 6mm ARC 16\" 1:7.5 Twist Stainless Threaded Barrel","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eProof Research AR-Style Barrel\u003c\/span\u003e\u003c\/strong\u003e is a drop-in replacement barrel chambered in the \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e6mm ARC\u003c\/span\u003e\u003c\/strong\u003e cartridge and built for the AR-platform. Part of Proof Research's \u003cstrong\u003eTraditional\u003c\/strong\u003e series, this barrel is machined from \u003cstrong\u003estainless steel\u003c\/strong\u003e with a \u003cstrong\u003estainless finish\u003c\/strong\u003e for corrosion resistance and long service life.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThis \u003cstrong\u003e16\"\u003c\/strong\u003e barrel is cut with a \u003cstrong\u003e1:7.5\" twist\u003c\/strong\u003e rate and uses a \u003cstrong\u003erifle length\u003c\/strong\u003e gas system with a \u003cstrong\u003e.750\" gas journal diameter\u003c\/strong\u003e. The muzzle is \u003cstrong\u003ethreaded\u003c\/strong\u003e so the end user can install a flash hider, muzzle brake, or suppressor to match the build. The barrel ships with \u003cstrong\u003eno sights\u003c\/strong\u003e installed, leaving the top of the platform free for an optics-ready handguard and the shooter's preferred optic.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eBuilt around Proof Research's Traditional-series profile and quality-controlled machining, the \u003cstrong\u003e128664\u003c\/strong\u003e 6mm ARC barrel is a solid foundation for a custom AR-platform rifle project.\u003c\/span\u003e\u003c\/p\u003e","brand":"Proof Research","offers":[{"title":"Default Title","offer_id":54998643769666,"sku":"126659","price":630.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/hires_37cbc11e-1de9-41a8-acec-5dc7e2e6cbc4.png?v=1784356968","url":"https:\/\/centerfiresystems.com\/products\/proof-research-ar-style-6mm-arc-16-1-7-5-twist-stainless-threaded-barrel","provider":"Centerfire Systems","version":"1.0","type":"link"}