The RISE 6mm ARC AR-15 Upper Receivers features an exceptionally accurate 18-inch 416R stainless steel threaded barrel.
Specifications:
- Forged Billet Aluminum Receiver
- 6mm ARC
- 18 1:7 Twist 416R Stainless Steel Barrel"
- 1/2x28 Threaded
- Rifle Length Gas System
- 15.25 Free Float M-LOK Handguard"
- RISE Ambidextrous Charging Handle
- Black Nitride Blot Carrier Group
- Black Anodized Finish