The Final Gravity 16-inch Carbine-Gas .338 ARC AR-15 Complete Upper Build combines robust performance with precision engineering. The upper features a 16-inch, 4150 CMV Steel barrel with a 1:8 twist rate for optimal stabilization of heavier projectiles. Its HBAR profile is finished in durable Parkerized black, ensuring resilience in various conditions. The Carbine-length gas system operates smoothly with a micro low-profile gas block and utilizes a 5/8x24 thread pitch for easy muzzle device attachment, paired with a GI Birdcage flash hider for effective noise reduction.
The upper receiver, crafted from 7075-T6 aluminum and anodized for longevity, houses an AR-15 QPQ Nitride Complete Bolt Carrier Group made from 9310 Alloy Steel. A 15-inch freefloat M-Lok handguard provides ample rail space for accessories while maintaining a lightweight profile. This assembly offers reliable function and versatility for the discerning gunsmith.
Caliber: .338 ARC
Barrel Length: 16-inch
Barrel Material: 4150 CMV Steel
Barrel Finish: Parkerized
Barrel Profile: HBAR (Heavy Barrel)
Barrel Twist Rate: 1:8
Barrel Gas System Length: Carbine-Length
Barrel Thread Pitch: 5/8x24
Handguard Style: M-Lok
Handguard Length: 15-inch
Handguard Color: Black
Upper Receiver Material: 7075-T6 Aluminum
Upper Receiver Finish: Anodized
Bolt Carrier: AR-15 QPQ Nitride Complete Bolt Carrier Group
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
Gas Block: Micro Low-Profile
Gas Block Size: 0.750"
Muzzle Device: AR-15 5/8x24 TPI GI Birdcage Flash Hider
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
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