GC_UPC TacFire BU-45ACP-7 Pistol Upper Assembly 45 ACP Caliber with 7 in Black Nitride Barrel, Black Anodized 7075-T6 Aluminum Receiver for M-LOK Handguard for AR-Platform Includes Bolt Carrier Group $260.79 BU45ACP7 show more like this Flat Rate Starting at $11.99 Hinterland Outfitters GC_UPC Tacfire .45 ACP 7" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-45ACP-7 $269.72 BU-45ACP-7 show more like this Calculated in Cart Classic Firearms GC_UPC TacFire BU-45ACP-7 Pistol Upper Assembly 45 ACP Caliber with 7" Black Nitride Barrel Black Anodized 7075-T6 Aluminum Receiver for M-LOK Handguard for AR-Platform Includes Bolt Carrier Group $270.85 BU45ACP7 show more like this $10.95 flat rate GunStuff TV