Specifications
Caliber: 5.56x45mm NATO
Barrel Name: Bear Creek Arsenal "Irithyll" AR-15 AR Pistol Barrel 7.5" Contour Barrel 1-7 Twist 5.56 NATO Manganese Phosphate Finish
Barrel Length: 7.5-inch
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Twist Rate: 1:7
Barrel Finish: Phosphate
Barrel Profile: Contour
Barrel Thread Pitch: 1/2x28
Gas System: Pistol
Gas Block: Micro Low-Profile Gas Block, .750 O.D Barrel Steel
Gas Block Size: 0.750
Gas Block Finish: Phosphate
Upper Receiver Name: AR-15 Upper Receiver, M4 Feed ramps, 7075 T6 Aluminum, Anodized
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: 6061-T6 Aluminum
Handguard Length: 7-inch
Handguard Color: Grey Anodized
Handguard Style: M-Lok
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
Bolt Carrier Name: AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group *Made In The USA*
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
Muzzle Device: AR-15 1/2x28 TPI GI Birdcage Flash Hider 5.56 .223 A2
Muzzle Thread Pitch: 1/2x28
Muzzle Device Finish: Phosphate