Details
The Null Entry 20-inch Rifle is a complete upper build designed for the AR-15 platform, chambered in 6mm ARC. It features a 20-inch barrel made from 416R stainless steel, with a polished finish and a heavy barrel (HBAR) profile. The barrel’s 1:8 twist rate ensures optimal projectile stabilization. This upper employs a rifle-length gas system with a micro low-profile gas block, providing reliability and performance.
The 15-inch freefloat M-Lok handguard, crafted from 6061-T6 aluminum, offers versatility for mounting accessories while minimizing weight. The upper receiver is made from 7075 T6 aluminum and anodized for strength and durability. Included components consist of an AR-15 M4 charging handle and a complete bolt carrier group, utilizing 9310 and 8620 alloy steels with a nitride finish. The muzzle device features a GI Birdcage flash hider with a 5/8×24 thread pitch, completing this robust assembly from Davidson Defense.
Specifications
Caliber: 6mm ARC, 6.5GD /6ARC /338ARC
Barrel Length: 20 inches
Barrel Material: 416R Stainless Steel
Barrel Finish: Polished Stainless Steel
Barrel Twist Rate: 1:8
Barrel Profile: HBAR (Heavy Barrel)
Barrel Gas System Length: Rifle-Length
Barrel Thread Pitch: 5/8×24
Gas Block: Micro Low-Profile Gas Block
Gas Block Size: 0.750 inches
Gas Block Material: Steel
Gas Block Finish: Phosphate
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: 6061-T6 Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Handguard Length: 15 inches
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
Bolt Carrier: AR-15 6.5 Grendel II QPQ Nitride Complete Bolt Carrier Group
Bolt Carrier Material: 9310 Alloy Steel (Bolt Head), 8620 Alloy Steel (Body)
Bolt Carrier Finish: Nitride
Muzzle Device: AR-15 5/8×24 TPI GI Birdcage Flash Hider
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