PROOF Research CZ 455/457 Prefit Barrels

If you’re a fan of the CZ 455 & 457 22 LR you’ll be an even bigger fan of the PROOF Research pre-fit carbon fiber barrels. We are even custom-running some thread protectors for these barrels, we wanted something nicer on there than the rubber caps that come from the factory!

These are cut with a Bentz chamber, and headspace at .044″ +/- .001″ (depending on your action).

The 16.1″ barrels weigh 22oz, 18.5″ barrels weigh 25oz, and the 20″ barrels weigh 27oz.