Specifications
Caliber: 5.56x45mm NATO
Barrel Name: Bear Creek Arsenal "Irithyll" AR-15 AR Pistol Barrel
Barrel Length: 7.5 inches
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Thread Pitch: 1/2x28
Barrel Gas System Length: Pistol
Barrel Finish: Phosphate
Barrel Twist Rate: 1:7
Barrel Profile: Contour
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Upper Receiver Name: AR-15 Side Charging Upper Receiver
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Type III Hard Coat Anodized
Charging Handle: Side Charging
Gas Block Name: Micro Low-Profile Gas Block
Gas Block Size: 0.750 inches
Bolt Carrier Name: Recoil Technologies AR-15 Side Charging BCG
Bolt Carrier Material: 8620 Alloy Steel
Bolt Carrier Finish: Nitride
Muzzle Device: AR-15 1/2x28 TPI GI Birdcage Flash Hider
Muzzle Device Finish: Manganese Phosphate
Muzzle Thread Pitch: 1/2x28
Buffer Tube: Heavy Duty Pistol Buffer Tube
Buffer Weight: 3 oz
Pistol Brace Name: Polymer Stabilizing Brace
Pistol Brace Material: Nylon Reinforced Polymer
Pistol Brace Color: Black
Endplate: AR-15 M16 Mil-Spec Receiver End Plate
Buffer Spring: Standard AR-15 Carbine Recoil Spring