RISE Armament Watchman XR 6mm ARC 18" Bbl Black Complete Upper RA-6ARC-CU-BLK-18

RISE Armament AR-15 6mm ARC 18in Complete Upper Receiver Rifle Length 1-7 Twist 1/2x28 Black. Specifications for RISE Armament AR-15 6mm ARC 18in Complete Upper Receiver: Manufacturer: RISE Armament Cartridge: 6mm ARC Barrel Length: 18 in Gas System Length: Rifle Length Barrel Twist Rate: 1-7 Threads per Inch: 1/2x28 Handguard Type: Free-Float Fabric/Material: 416R Stainless Steel Handguard Length: 15.25 in Gun Rail: Picatinny Gun Make: AR Platform Gun Model: AR-15 Mount Type: Picatinny Features of RISE Armament AR-15 6mm ARC 18in Complete Upper Receiver Barrel: 18-inch 416R stainless steel button-rifled air-gauged and tested; threaded Handguard: Free-floating skeletonized aluminum with continuous 12 o clock Picatinny rail MLOK slots four threaded steel sling swivel QD inserts a snag-free front and patent-pending attachment lock to maintain your zero Charging Handle: RISE ambidextrous charging handle for right- or left-handed operation and improved ease of use with optics and gloves Bolt Carrier Group: Premium BCG with 9310 bolt individually MPI tested staked gas key durable black nitride finish Receiver: Forged billet aluminum Warranty: Backed by RISE s Lifetime Warranty and More-Bang-for-Your-Buck Guarantee Other Caliber Available: Available in 22 ARC Uppers Package Contents: RISE Armament AR-15 6mm ARC 18in Complete Upper Receiver RISE Armament RA-6ARC-CU-BLK-18: AR-15 6mm ARC 18in Complete Upper Receiver Rifle Length 1-7 Twist 1/2x28 Black