The Proof Research Pre-Fit Barrel For Sig Sauer Cross, 6mm Creedmoor, 20" Carbon Fiber, Threaded is a precision upgrade for shooters who want a lighter rifle without sacrificing consistency. Purpose-built for the Sig Sauer Cross action, this drop-in barrel arrives with the proper barrel extension installed and features a carbon fiber–wrapped steel core that trims weight while maintaining rigidity for repeatable long-range accuracy.
This 20" 6mm Creedmoor barrel uses a fast 1:7.5 twist to stabilize modern high-BC projectiles and comes with a 5/8-24 threaded muzzle ready for brakes or suppressors. The carbon fiber construction promotes efficient heat dissipation during extended strings of fire while keeping the rifle nimble for field carry. Ideal for precision hunting, practical field matches, and long-range range sessions, it reflects Proof Research’s focus on innovation and high-end craftsmanship.
- Manufacturer: Proof Research
- Model: 134566
- Caliber: 6mm Creedmoor
- Barrel Length: 20"
- Twist Rate: 1:7.5
- Muzzle Thread: 5/8-24
- Construction: Carbon Fiber Wrap Over Steel
| __Twist Rate | 1:7.5 |
| __Material | Carbon Fiber, Steel |
| __Rifling | Other |
| __Barrel Length | 20.00" |
| __Capacity | NA |
| __Optic Footprint | NA |
| __Action | NA |
| __Model | 134566 |
| __Caliber | 6mm Creedmoor |
