This Proof Research barrel is a pre-fit, drop-in carbon-fiber-wrapped barrel from Proof Research (brand part no. 134511) machined for the Sig Sauer Cross bolt-action rifle. It is chambered in 6.5 Creedmoor, uses Proof Research’s carbon-fiber-wrapped stainless steel liner construction for reduced weight and better heat dissipation, and carries a 1-8 twist rate at an 18-inch overall length.

Key Specifications

• It is a bolt-action rifle barrel, not an AR-pattern/semi-auto barrel.
• It is chambered in 6.5 Creedmoor, a popular long-range precision cartridge.
• It is a pre-fit, drop-in barrel machined specifically for the Sig Sauer Cross bolt-action rifle.
• The Sig Sauer Cross is a modular, folding-stock bolt-action platform this barrel is matched to.
• It requires no gunsmith chambering, since it is finish-reamed at the factory to the Cross’s own headspace.
• It uses Proof Research’s carbon-fiber-wrapped stainless steel liner construction, lighter and cooler-running than a plain steel barrel.
• It has a 1-8 rate of twist, a common choice for stabilizing heavier 6.5 Creedmoor match bullets.
• It measures a compact 18 inches overall.

Frequently Asked Questions

Will this fit any bolt-action rifle? No, this barrel is machined specifically as a drop-in, pre-fit part for the Sig Sauer Cross rifle; it will not fit a different action.

Why is this barrel only 18 inches? An 18-inch length keeps the Sig Cross compact and maneuverable, trading some muzzle velocity for handling versus a longer barrel.

What does ‘drop-in’ mean here? It means the barrel is machined to the Sig Cross’s own barrel-nut takedown system, so it can be swapped without a gunsmith cutting a new chamber.

Buy the Proof Research Sig Cross Pre-Fit Carbon Fiber 6.5 Creedmoor Barrel, 18-inch, 1-8 Twist

Pick up the Proof Research Sig Cross Pre-Fit Carbon Fiber 6.5 Creedmoor Barrel, 18-inch, 1-8 Twist from our Rifle Barrels selection at Schaefer Defense, shipped fast and fully insured from our Lubbock, TX gun shop.