Specifications
Caliber: 5.56 NATO / .223 Remington
Platform: AR-15
Barrel Manufacturer: Bear Creek Arsenal
Barrel Length: 4.5"
Barrel Profile: HBAR
Barrel Material: 4150 Chrome Moly Vanadium Steel
Barrel Finish: Parkerized
Twist Rate: 1:7
Gas System: Micro Length
Gas Journal Diameter: .750"
Muzzle Thread: 1/2x28
Upper Receiver: AR-15 Upper Receiver
Upper Material: 7075-T6 Aluminum
Upper Finish: Black Anodized
Feed Ramps: M4
Handguard Length: 4.2"
Handguard Style: Tubular
Handguard Material: Aluminum
Handguard Mounting System: M-LOK
Handguard Internal Diameter: 1.77"
Handguard Feature: Suppressor-Ready
Muzzle Device: Steel Flash Can, Design 11 Rev. 2 Pattern 2
Muzzle Device Thread: 1/2x28
Muzzle Device Diameter: 1" OD
Muzzle Device Finish: Black Oxide
Muzzle Device Compatibility: Up to 9mm
Crush Washer: 1/2", Black
Gas Block: Micro Low-Profile Steel Gas Block
Gas Block Diameter: .750"
Gas Tube: 5.25" Micro-Length Gas Tube
Forward Assist: AR-15 Forward Assist Assembly Included
Ejection Port Assembly: AR-15 .223/5.56 Ejection Port Door, Rod, and Spring Included