{"product_id":"angstadt-ar15-bcg-45acp-blk","title":"Angstadt Arms AR-15 BCG .45 ACP – Black Nitride Finish","description":"\u003cp\u003eThe Angstadt Arms AR-15 BCG in .45 ACP is engineered specifically for AR-15 platform pistol caliber carbines chambered in .45 ACP. This bolt carrier group is designed to handle the blowback operation common in pistol-caliber builds, providing reliable cycling with proper buffer and spring combinations. It's a direct replacement for builders and shooters running dedicated .45 ACP uppers who need a purpose-built BCG for this larger pistol cartridge.\u003c\/p\u003e\u003cp\u003eConstructed from 8620 steel with a black nitride finish, this BCG offers corrosion resistance and reduced friction for smoother operation and easier cleaning. The nitride treatment penetrates the metal surface rather than coating it, providing long-term durability. Installation is drop-in for compatible .45 ACP upper receivers, though proper headspacing verification and function testing with your specific barrel and buffer system is essential before live fire.\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 platform chambered in .45 ACP\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 (headspace verification required)\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":47944016429311,"sku":"ANGAA45BCGNIT","price":162.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/1241001.jpg?v=1766612236","url":"https:\/\/doublestackstore.com\/products\/angstadt-ar15-bcg-45acp-blk","provider":"Double Stack Store","version":"1.0","type":"link"}