Bilson Arms 9mm Pump Style Forward Charging Upper Assembly with 4140 Nitride Coated Chrome Moly Steel Barrel

AR9 Pump Style Forward Charging Upper Assembly Specifications for Bilson Arms 9mm Pump Style Forward Charging Upper Assembly with 4140 Nitride Coated Chrome Moly Steel Barrel: Manufacturer: Bilson Arms Cartridge: 9mm Luger Overall Length: 24.5 in Barrel Length: 16 in Barrel Profile: Pencil Barrel Twist Rate: 1-10 Threads per Inch: 1/2×28 Handguard Type: Free-Float Muzzle Device: A2 Birdcage Gun Model: AR-15 Fabric/Material: 6061-T6 Aluminum Handguard Length: 15 in Gun Rail: Picatinny Gun Make: AR Platform Barrel Material: 4140 Chrome Moly Vanadium Bolt Carrier Group Included: MIL-SPEC Charging Handle Included: MIL-SPEC Weight: 4.8 lb Magazine Included: No Mount Type: M-LOK Features of Bilson Arms 9mm Pump Style Forward Charging Upper Assembly with 4140 Nitride Coated Chrome Moly Steel Barrel: Manuf in-house, more efficient and ergonomic Patent pending forward charging action Package Contents: Bilson Arms 9mm Pump Style Forward Charging Upper Assembly with 4140 Nitride Coated Chrome Moly Steel Barrel Steel Nitride BCG