Specifications
Barrel Name: Bear Creek Arsenal "Irithyll" AR-15 AR Pistol Barrel
Barrel Length: 7.5-inch
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Finish: Phosphate
Barrel Twist Rate: 1:7
Barrel Profile: Contour
Barrel Gas System Length: Pistol
Barrel Thread Pitch: 1/2x28
Caliber: 5.56x45mm NATO
Gas Block Name: Micro Low-Profile Gas Block
Gas Block Size: 0.750
Muzzle Device: AR-15 1/2x28 TPI GI Birdcage Flash Hider 5.56 .223 A2
Muzzle Thread Pitch: 1/2x28
Upper Receiver Name: AR-15 Upper Receiver, M4 Feed ramps
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: 6061-T6 Aluminum
Handguard Length: 7-inch
Handguard Color: Purple
Handguard Style: M-Lok, Freefloat
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
Bolt Carrier Name: AR-15 5.56/.223/.300/.350 Complete Bolt Carrier Group
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
Pistol Brace: Magpul BTR Pistol Brace, Black, AR-15, for Standard Mil-Spec Buffer Tube
Buffer Tube: Mil-Spec Heavy-Duty AR-15 6-Position Buffer Tube
Buffer Weight: 3 oz
Recoil Spring: Standard AR-15 Carbine Recoil Spring - Made In The USA
Endplate: AR-15 M16 Mil-Spec Receiver End Plate
Castle Nut: AR-15 Carbine Castle Nut