CZ 457 American SR Barrel Set 17 HMR 20" Threaded - Nitride Finish

The CZ 457 American SR Barrel Set brings 17 HMR performance to any CZ 457 or CZ 455 American-pattern rifle. Built around CZ's 60-degree micro-Mauser bolt platform, this factory barrel assembly lets you re-chamber an existing rifle or replace a worn original without buying a complete firearm.

The set centers on a 20-inch barrel finished in nitride for corrosion resistance and long service life. The muzzle is factory threaded 1/2x28 and suppressor-ready, so rimfire suppressors and muzzle accessories thread on directly. The exterior profile and finish mirror the factory CZ 457 American barrel for a seamless blend with the host rifle.

Because the action dimensions are shared across the CZ 455 and CZ 457 families, this set drops into either platform as a direct factory replacement, giving owners a convenient path to 17 HMR performance or a fresh barrel for an existing rifle.

Whether for varmint work behind a flat-shooting 17 HMR load, quiet rimfire plinking behind a suppressor, or simply a backup barrel for an existing CZ 455/457 rifle, this set delivers factory-direct quality in a turnkey package.