20" 6MM ARC Upper Assembly for AR15 with 20" 6MM ARC Shaw Medium Stainless 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.
- Barrel: 20 inch 6MM ARC Medium 416R Stainless Barrel by Shaw Barrels with 1x7.5 Twist, M4 Feed Ramps, and 5/8x24 Threads. Shaw Custom Barrels offer unparalleled quality, reliability, and accuracy - every one we sell is match grade.
- 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: Rifle Length Gas System with 0.750" Low Profile Gas Block.
- Muzzle Device: Competition Muzzle Brake with crush washer.
This upper assembly will fit all mil-spec AR15 lower receivers.
This item will ship directly to you with no FFL transfer required. You are responsible for knowing federal, state and local laws applicable to this item.
DetailsCurrent Stock: 23SKU: UA60A20SS75MC24R_15ML00_CB_SHUPC:Availability: Usually Ships in 24 Hours