{"product_id":"midwest-industries-muzzle-device-collar-sig-mcx-300-aac-4140-steel-phosphate","title":"Midwest Industries Muzzle Device Collar SIG MCX .300 AAC - 4140 Steel Phosphate","description":"\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eThe \u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eMidwest Industries Muzzle Device Collar\u003c\/span\u003e\u003c\/strong\u003e is purpose-built for the \u003cstrong\u003eSIG MCX\u003c\/strong\u003e in \u003cstrong\u003e.300 AAC Blackout\u003c\/strong\u003e and resolves one of the platform's most common fitment issues. SIG's tapered MCX barrel shoulder prevents many aftermarket muzzle devices from seating square against the barrel, and this collar converts that taper into a clean \u003cstrong\u003e90-degree shoulder\u003c\/strong\u003e so standard muzzle devices tighten down and lock up properly.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eMachined from \u003cstrong\u003e4140 steel\u003c\/strong\u003e and protected by a \u003cstrong\u003ephosphate\u003c\/strong\u003e finish, the collar is built to handle the heat and fouling associated with regular .300 BLK firing schedules without complaint. It threads onto the existing MCX barrel and provides the correct shoulder geometry to support your chosen muzzle device.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14pt;\"\u003eProudly \u003cstrong\u003eMade in the USA\u003c\/strong\u003e by Midwest Industries, the MI-MCX762S is the direct solution for getting your SIG MCX .300 AAC running the muzzle device you actually want to run.\u003c\/span\u003e\u003c\/p\u003e","brand":"Midwest Industries","offers":[{"title":"Default Title","offer_id":55334275711298,"sku":"MIMCX762S","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/7921\/5682\/files\/alt_7c2f0849-0571-42dd-985d-0aa72af8c4c5.jpg?v=1785168372","url":"https:\/\/centerfiresystems.com\/products\/midwest-industries-muzzle-device-collar-sig-mcx-300-aac-4140-steel-phosphate","provider":"Centerfire Systems","version":"1.0","type":"link"}