{"product_id":"angstadt-ar15-bcg-9mm-blk","title":"Angstadt Arms AR-15 Bolt Carrier Group 9mm – Black Nitride","description":"\u003cp\u003eThis Angstadt Arms 9mm bolt carrier group converts your AR-15 platform to fire 9mm cartridges, enabling use with pistol-caliber upper receivers. Designed specifically for blowback 9mm systems, this BCG eliminates the need for a buffer spring and works with dedicated 9mm lowers or magazine block conversions. It's a purpose-built component for shooters building or upgrading a pistol-caliber carbine.\u003c\/p\u003e\u003cp\u003eThe carrier is machined from steel and treated with a black nitride finish for corrosion resistance and reduced friction. This is a drop-in component for compatible 9mm AR-15 uppers—no gunsmithing required, though familiarity with AR-15 disassembly and reassembly is necessary for installation. Ensure your lower receiver and buffer system are configured for blowback 9mm operation before use.\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-15 9mm blowback uppers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 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 (requires AR-15 assembly knowledge)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Bolt carrier group assembly\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Angstadt Arms","offers":[{"title":"Default Title","offer_id":47944016265471,"sku":"ANGAA09BCGNIT","price":162.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/1240983.jpg?v=1766612200","url":"https:\/\/doublestackstore.com\/products\/angstadt-ar15-bcg-9mm-blk","provider":"Double Stack Store","version":"1.0","type":"link"}