The Proof Research Pre-Fit Barrel is a carbon fiber-wrapped replacement barrel chambered in .22 LR, built as a drop-in bull-contour pre-fit for the CZ rimfire action (Proof Research part no. 121443).

Key Specifications

• Chambered in .22 LR
• 18.5-inch barrel length
• 1-in-16 rate of twist
• 1/2-28 threaded muzzle
• Bull contour
• Pre-fit for the CZ rimfire action
• Carbon fiber-wrapped construction
• Weighs approximately 1 lb 9 oz

Frequently Asked Questions

Is the muzzle threaded? Yes, it’s threaded 1/2-28 for a suppressor or muzzle device.

What action is this barrel built for? It’s a pre-fit drop-in built for the CZ rimfire action.

What’s the twist rate? It has a 1-in-16 rate of twist, standard for .22 LR.

Buy the Proof Research Pre-Fit Barrel, .22 LR, 18.5-Inch Bull, CZ, Threaded

Order the Proof Research Pre-Fit Barrel, .22 LR, 18.5-Inch Bull, CZ, Threaded from a Lubbock, TX gun shop. Shop more Proof Research parts or browse the Rifle Barrels category at Schaefer Defense.