![what can you tell me about this BCG? It came out of a colt a1 upper with a replacement FN barrel. bolt has MPC markings, (upper left hand picture) but the carrier what can you tell me about this BCG? It came out of a colt a1 upper with a replacement FN barrel. bolt has MPC markings, (upper left hand picture) but the carrier](https://preview.redd.it/bj4zgg3fowe81.jpg?auto=webp&s=3d5e86fc0893639e9de1bf6d3523d22656410782)
what can you tell me about this BCG? It came out of a colt a1 upper with a replacement FN barrel. bolt has MPC markings, (upper left hand picture) but the carrier
![FF9MMBCGCNITRIDE - Faxon Firearms 9mm Bolt Carrier Group Complete, Glock & Colt Compatible Nitride - AR15Discounts FF9MMBCGCNITRIDE - Faxon Firearms 9mm Bolt Carrier Group Complete, Glock & Colt Compatible Nitride - AR15Discounts](https://ar15discounts.com/wp-content/uploads/csm/faxon-firearms-9mm-bolt-carrier-group-complete-glock-colt-compatible-nitride-accessory-ar15discounts_651.jpg.optimal.jpg)
FF9MMBCGCNITRIDE - Faxon Firearms 9mm Bolt Carrier Group Complete, Glock & Colt Compatible Nitride - AR15Discounts
![Faxon AR-15 9mm Complete Bolt Carrier Group For Glock And Colt Style Lowers Steel Nitride Black MP-AR15 [FC-816341022805] - Cheaper Than Dirt Faxon AR-15 9mm Complete Bolt Carrier Group For Glock And Colt Style Lowers Steel Nitride Black MP-AR15 [FC-816341022805] - Cheaper Than Dirt](https://cdn11.bigcommerce.com/s-onk2ymsnus/images/stencil/1280x1280/attribute_rule_images/175942_source_1686852403.jpg)