This is an AR-45 upper build kit chambered in .45 ACP, built around a 7.5-inch M4 contour 4150 CMV steel barrel with a Parkerized finish, a 1-16 twist rate, and a direct blowback system with no gas tube or gas block. The PCC billet AR-15 upper receiver with a black finish anchors the front end. The 7-inch freefloat M-LOK handguard in black aluminum with an integrated hand stop covers the compact forend. The barrel is threaded at .578x28. BCG and charging handle are not included.
The PCC billet AR-15 upper receiver with a black finish forms the core of the front end for the AR-45 platform. The 7.5-inch M4 contour 4150 CMV steel barrel brings a Parkerized finish and a 1-16 twist rate to the .45 ACP chamber, threaded at .578x28. This upper operates on a direct blowback system, meaning there is no gas tube or gas block present or required on this upper. The 7-inch freefloat M-LOK handguard in black aluminum surrounds the barrel along the compact forend with M-LOK slots for accessory attachment and an integrated hand stop positioned along the handguard body.
Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. BCG and charging handle are not included.
Platform: AR-15
Caliber: .45 ACP
Operating System: Blowback
Barrel Length: 7.5"
Barrel Profile: M4 Contour
Barrel Material: 4150 CMV Steel
Barrel Finish: Parkerized
Twist Rate: 1:16
Gas System: Pistol Length
Thread Pitch: .578x28
Upper Receiver: PCC Billet AR-15 Upper Receiver
Upper Receiver Finish: Black
Handguard: Free Float M-LOK with Integrated Hand Stop
Handguard Length: 7"
Handguard Material: Aluminum
Handguard Finish: Black
Color: Black
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