{"product_id":"aero-ar9-9mm-bcg-blk-nitride","title":"Aero Precision AR9 9mm Bolt Carrier Group – Black Nitride","description":"\u003cp\u003eThe Aero Precision AR9 9mm Bolt Carrier Group is purpose-built for 9mm AR pistol-caliber carbine builds. Engineered specifically for the AR-9 platform, this BCG uses a blowback operating system that eliminates the need for a buffer weight, making it compatible with standard carbine buffer systems. The ramped bolt face and dedicated 9mm geometry ensure reliable feeding and extraction with both Glock and Colt-pattern magazines, depending on your lower receiver configuration.\u003c\/p\u003e\u003cp\u003eManufactured from 8620 steel with a black nitride finish, this BCG provides excellent corrosion resistance and reduced friction for smoother cycling. The nitride treatment penetrates the steel surface rather than coating it, delivering long-term durability even under high round counts. As a drop-in component for AR-9 uppers, installation requires no gunsmithing—simply insert into your upper receiver and install your charging handle. Designed and manufactured by Aero Precision to their MIL-SPEC standards.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Bolt Carrier Group\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Firearms:\u003c\/strong\u003e AR-9 \/ 9mm AR pistol-caliber carbines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 8620 Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Nitride\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Drop-In\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Bolt Carrier Group assembly\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Aero Precision","offers":[{"title":"Default Title","offer_id":47944020984063,"sku":"APRH200083C","price":189.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/2951790.jpg?v=1766612956","url":"https:\/\/doublestackstore.com\/products\/aero-ar9-9mm-bcg-blk-nitride","provider":"Double Stack Store","version":"1.0","type":"link"}