The Iron Man 18-inch AR-15 6MM ARC Rifle Upper Build Kit from Davidson Defense is engineered for precision and performance. This kit features a robust 18" 6mm ARC barrel crafted from 4150 chrome moly vanadium steel, with a mid-length gas system and a medium profile that supports a 1:7.5 twist rate. The barrel is finished with a nitride coating and comes equipped with a 5/8x24 thread pitch for compatibility with muzzle devices, including the included GI Birdcage Flash Hider. The upper receiver is a Black Diamond Series billet design made from 6061-T6 aluminum, anodized for durability. It includes a lightweight M-Lok handguard made from aircraft-grade aluminum in a sleek black finish.
Platform: AR-15
Caliber: 6mm ARC
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Length: 18 inches
Barrel Twist Rate: 1:7.5
Barrel Profile: Medium
Barrel Gas System Length: Mid-Length
Barrel Finish: Nitride
Barrel Thread Pitch: 5/8x24
Gas Block Size: 0.75
Muzzle Device: 5/8x24 TPI GI Birdcage Flash Hider
Muzzle Thread Pitch: 5/8x24
Upper Receiver Material: 6061-T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: Aircraft-Grade Aluminum
Handguard Color: Black
Handguard Style: M-Lok
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