The CZ 457 Premium is a bolt-action .22 LR rifle built around a cold hammer-forged 16-inch barrel and a Turkish walnut stock with a high/flat American-style comb. The 5-round detachable magazine and threaded muzzle (1/2"-20) make it practical for both standard range use and suppressor-equipped shooting. 
 

Key Specifications 

• Manufacturer: CZ 
• Model: 457 Premium 
• Action Type: Bolt Action 
• Caliber: .22 LR 
• Barrel Length: 16 inches 
• Capacity: 5 rounds (detachable magazine) 
• Weight: Approximately 5.95 lbs 
   

Detailed Features 

 
The cold hammer-forged barrel gives consistent accuracy over a long barrel life. The high comb design aligns the eye naturally with most scope configurations, which reduces the need to crane your neck during extended sessions. 
 
The adjustable trigger lets buyers dial in their preferred pull weight rather than accepting whatever the factory shipped. The threaded 1/2"-20 muzzle is a practical feature that opens up suppressor and muzzle device options without needing an adapter. 
 
The Turkish walnut stock has a decorative tip and a clean finish -- it looks the part of a classic rimfire without being fragile. 
 

Usage Scenarios 

 
Sport shooting: the accurate barrel and adjustable trigger work well in competitive rimfire formats. Small game hunting: .22 LR keeps things quiet and the 16-inch barrel is easy to maneuver in brush. Suppressor shooting: the threaded muzzle makes setup straightforward.

Owners of the CZ 457 Premium in walnut with threaded barrel consistently mention build quality and accuracy together. The walnut stock looks and feels well-made, and the cold hammer-forged barrel delivers tight groups at typical rimfire distances. The bolt runs smoothly, which is a consistent point of praise across reviews.

The threaded barrel gets specific mention as a practical bonus for anyone who owns a suppressor or plans to get one. The adjustable trigger is also well-regarded for giving shooters a way to set things up to their preference.

Ergonomics are comfortable for most buyers and the controls are intuitive. On the minor critiques: some note that at roughly 5.95 lbs it runs slightly heavier than competing .22 LR rifles, and a few have preferences about sight options or scope mounting. Overall the CZ 457 Premium is viewed as strong value given its feature set and construction quality.