Sharps Bros AR-15 223 Rem/556NATO Complete Upper Receiver - SBBU01

Sharps Bros. 16in AR15/M4 Complete Upper Receiver 5.56/.223 Cal 15in Handguard Mid Length 1-7 Twist Rate 1/2x28 TPI Black Nitride. Specifications for Sharps Bros. 16in AR15/M4 5.56/.223 Complete Upper Receiver: Manufacturer: Sharps Bros. Cartridge: .223 Remington Overall Length: 24.5 in Barrel Length: 16 in Barrel Profile: M4 Gas System Length: Mid Length Barrel Twist Rate: 1-7 Threads per Inch: 1/2x28 Handguard Type: Free-Float Muzzle Device: Birdcage Finish: Nitride Color: Black Gun Model: AR-15 Condition: New Fabric/Material: 6061 Aluminum 7075 Aluminum Gas Block Journal Size-Diameter: .750 in Handguard Length: 15 in Handguard Style: Quad Rail Gun Rail: Full Top Rail Gun Type: Rifle Gun Make: AR Platform Bolt Carrier Group Included: MIL-SPEC Charging Handle Included: MIL-SPEC Weight: 29 oz Magazine Included: No Mount Type: M-LOK Package Contents: Sharps Bros. 16in AR15/M4 5.56/.223 Complete Upper Receiver Sharps Bros. SBBU01: 16in AR15/M4 Complete Upper Receiver 5.56/.223 Cal 15in Handguard Mid Length 1-7 Twist Rate 1/2x28 TPI Black Nitride