Details
The Null Entry 20-inch Rifle-Gas 1:8 6MM ARC AR-15 Upper Build Kit features a robust 20" HBAR barrel crafted from 416R stainless steel, ensuring durability and precision. With a 1:8 twist rate, this barrel is optimized for stability and accuracy across a range of ammunition types. The rifle-length gas system, complemented by a 0.750" gas block, guarantees reliable cycling and performance.
Constructed from 7075 T6 aluminum, the anodized upper receiver provides a strong and lightweight foundation. The kit includes a 15-inch freefloat M-Lok handguard made from 6061-T6 aluminum, offering versatile attachment options for accessories while maintaining a sleek profile. Finished in black, the handguard enhances the upper’s aesthetics and functionality. The package also includes an AR-15 TPI GI birdcage flash hider with a manganese phosphate finish, ensuring a refined shooting experience. This build kit is ideal for gunsmiths seeking a versatile and high-performing AR-15 upper assembly.
Specifications
Barrel Length: 20"
Caliber: 6mm ARC
Barrel Material: 416R Stainless Steel
Barrel Profile: HBAR (Heavy Barrel)
Barrel Twist Rate: 1:8
Barrel Gas System Length: Rifle-Length
Gas Block Size: 0.750"
Barrel Finish: Polished Stainless Steel
Barrel Thread Pitch: 5/8×24
Upper Receiver Material: 7075 T6 Aluminum
Upper Receiver Finish: Anodized
Handguard Material: 6061-T6 Aluminum
Handguard Length: 15-inch
Handguard Color: Black
Handguard Style: M-Lok
Muzzle Device Name: AR-15 TPI GI Birdcage Flash Hider
Muzzle Device Finish: Manganese Phosphate
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