The Proof Research Barrel Blank is a carbon fiber-wrapped .308-caliber (bore diameter) bolt-action barrel blank in the Sendero Light contour, supplied unchambered for a gunsmith to fit and chamber to your cartridge of choice (Proof Research part no. 121689).

Key Specifications

• .308-caliber bore diameter, unchambered blank
• 22-inch barrel length
• 1-in-9 rate of twist
• Sendero Light contour
• 2.5-inch barrel breech, 1.20-inch shank diameter
• Carbon fiber-wrapped construction
• Weighs approximately 2 lb 11 oz

Frequently Asked Questions

Is this barrel already chambered? No, it’s an unchambered blank sold by bore diameter; a gunsmith chambers and fits it to your specific cartridge and action.

How does the Sendero Light contour compare to standard Sendero? Sendero Light trims weight versus the standard Sendero profile while keeping a similar precision-oriented taper.

What’s the barrel’s shank diameter? It’s 1.20 inches, with a 2.5-inch barrel breech dimension.

Buy the Proof Research Carbon Fiber Barrel Blank, .308 Caliber, 22-Inch Sendero Light

Order the Proof Research Carbon Fiber Barrel Blank, .308 Caliber, 22-Inch Sendero Light from a Lubbock, TX gun shop. Shop more Proof Research parts or browse the Rifle Barrels category at Schaefer Defense.