CZ-USA Varmint Barrel Set 457/455 17 HMR 24" Threaded 1/2x28 Nitride

The CZ-USA Varmint Barrel Set is a direct-fit replacement barrel for the CZ 457 and CZ 455 rimfire rifle platforms, chambering the action in the high-velocity 17 HMR cartridge. The 24" heavy-profile, cold-hammer-forged barrel carries a wear-resistant nitride finish and is cut with 1/2x28 threads at the muzzle so a rimfire suppressor or muzzle device mounts straight out of the box.

Built around a varmint hunter's checklist, the heavy contour adds rigidity and pushes weight forward of the action for a steady bench-rest hold, while the non-fluted shank keeps the outside of the barrel simple to wipe down between range sessions. No iron sights are installed, leaving the top of the barrel clean for the shooter's preferred optic. Drop-in fitment means a CZ 455 or CZ 457 owner can convert a standard rimfire rifle into a dedicated 17 HMR varmint rig without modifying the action.