The Proof Research Bolt Action Barrel is a pre-fit 6mm Creedmoor replacement built specifically as a drop-in barrel for the Sig Cross, guaranteed to headspace without a gunsmith (Proof Research part no. 134573).

Key Specifications

• Chambered in 6mm Creedmoor
• 20 inch barrel length
• 1:7.50 inch rate of twist, 5-groove rifling
• 5/8-24 tpi threaded muzzle
• Stainless steel construction
• Pre-fit drop-in design guaranteed to headspace for the Sig Cross with no gunsmith required
• Compatible specifically with the Sig Cross rifle platform

Frequently Asked Questions

Do I need a gunsmith to install this barrel? No — Proof Research’s pre-fit drop-in design is guaranteed to headspace correctly on the Sig Cross without gunsmith fitting.

What’s the twist rate on this barrel? It has a 1:7.50 inch rate of twist with 5-groove rifling, suited to a range of 6mm Creedmoor bullet weights.

Does this barrel come threaded? Yes, the muzzle is threaded 5/8-24 tpi for a muzzle brake or suppressor.

Buy the Proof Research 6mm Creedmoor Pre-Fit Barrel for Sig Cross

Order the Proof Research 6mm Creedmoor Pre-Fit Barrel for Sig Cross from a Lubbock, TX gun shop. Shop more Proof Research parts or browse the Rifle Barrels category at Schaefer Defense.