18" 6MM ARC Upper - Wilson Combat Tactical Hunter Fluted Glass Bead SS Barrel - 15" Rail - Comp Brake

18" 6MM ARC Upper Assembly for AR15 with 18" 6MM ARC Wilson Combat Tactical Hunter Fluted Glass Bead SS Barrel, 15" Rail and Competition Muzzle Brake.

The 6mm ARC utilizes efficient, high-BC bullets to deliver unprecedented performance from the AR-15 platform, and is also used by specialized military groups for their multipurpose combat rifles. The 6mm ARC uses 6.5 Grendel BCGs and magazines.

Specifications:

• Barrel: 18 inch 6MM ARC Tactical Hunter Fluted 416R Glass Bead SS Barrel by Wilson Combat with 1x7.5 Twist, M4 Feed Ramps, and 5/8x24 Threads. Wilson Combat barrels are manufactured from the best materials with the tightest tollerances to deliver world class performance.
• Upper: Mil-Spec Upper Receiver machined from 7075 T6 aluminum forging with forward assist and dust cover installed. Hard coat anodized MIL-STD 8625 Type 3 Class 2.
• Rail: 15" Narrow Profile Free Float Rail machined from 6061 T6 aluminum. Comfortable and light weight, with M-LOK or KEYMOD attachment points along the entire length at 3, 6, and 9 positions. Hard coat anodized MIL-STD 8625 Type 3 Class 2.
• Gas System: Intermediate Length Gas System with 0.750" Low Profile Gas Block.
• Muzzle Device: Competition Muzzle Brake with crush washer.