18" 6MM ARC Shaw Stainless Medium Barrel AR15 Upper Receiver with 15" Rail and Competition Muzzle Brake
The 6mm ARC utilizes efficient, high-BC bullets to deliver unprecedented performance from the AR-15 platform. Because the versatile 6mm ARC does much of what larger cartridges can and everything that smaller cartridges can't, it has been tested, selected and fielded by a specialized group within the U.S. DoD for their multipurpose combat rifle program.
- 18 inch 6MM ARC 416R Stainless Medium Barrel by Shaw Barrels with 1x7.5 Twist, M4 Feed Ramp, and 5/8x24 Threads. This is a highly accurate, precision machined, match grade barrel.
- Mil-Spec Upper Receiver machined from 7075 T6 aluminum with forward assist and dust cover installed. Hard coat anodized MIL-STD 8625 Type 3 Class 2.
- 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.
- 0.750" Low Profile Gas Block.
- Rifle Length Gas System.
- 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: 33SKU: UA60A18SS75MC24R_15ML00_CB_SHUPC: