CZ 457 AT-One Varmint Bolt Action Rimfire Rifle

For Tennessee shooters who know the value of a rifle that can handle the varied terrain from the Smoky Mountains to the Cumberland Plateau, the CZ 457 AT-One Varmint Bolt Action Rimfire Rifle offers a practical blend of precision and adjustability. Whether you’re dialing in groups at a range near Nashville or working a varmint problem on a farm outside Knoxville, this .22 LR platform provides the consistency needed for accurate shot placement. It is a purpose-built tool for those who take their rimfire shooting seriously, without unnecessary frills.

What This Product Is and Who It Is For

The CZ 457 AT-One Varmint is a bolt-action rimfire rifle chambered in .22 Long Rifle, designed for shooters who require a high degree of stock adjustability and barrel accuracy. This rifle is not a tactical or duty weapon; it is a precision instrument for target shooting, varmint hunting, and competition-style rimfire events. It serves the target shooter who wants to fine-tune their fit, the hunter who needs a quiet, low-recoil option for small game and pests, and the collector who appreciates CZ’s reputation for reliable, well-machined firearms. It is also a strong choice for introducing new shooters to the fundamentals of marksmanship, thanks to its manageable recoil and ergonomic controls.

Key Specifications Breakdown

• Caliber: .22 Long Rifle (LR)
• Capacity: 5+1 rounds (detachable magazine)
• Barrel Length: 16.5 inches
• Barrel Profile: Heavy varmint contour, cold hammer-forged steel
• Overall Length: 37.8 inches
• Weight: Approximately 8.1 pounds (unloaded)
• Stock: AT-One adjustable synthetic stock with cheek piece and length-of-pull adjustment
• Stock Finish: Black synthetic
• Receiver Finish: Black oxide / matte blued steel
• Sights: None (drilled and tapped for scope bases; 11mm dovetail rail integrated)
• Trigger: Single-set trigger, adjustable for pull weight and sear engagement
• Safety: Manual, two-position push-to-fire safety
• Action: Bolt action, micro-length action with 60-degree bolt lift
• Magazine: Detachable box magazine, flush-fit

Feature Deep-Dive

The AT-One stock is the defining feature of this model. It provides a fully adjustable cheek piece and length of pull, allowing the shooter to customize the fit without tools. This adjustability is particularly beneficial when shooting from varied positions—prone, bench, or standing—as it ensures a consistent cheek weld and eye alignment with the scope. The synthetic construction is durable and resistant to Tennessee’s humidity and temperature swings, making it a reliable choice for field use.

The 16.5-inch heavy varmint barrel is cold hammer-forged, a process that creates consistent bore dimensions and rifling for improved accuracy. The shorter length keeps the rifle balanced and maneuverable for hunting in brush or from a blind, while the heavy profile helps dissipate heat during extended range sessions. This barrel is threaded with a 1/2×28 pattern, allowing for the attachment of suppressors or muzzle devices, which is a practical consideration for shooters who prefer reduced noise levels.

The single-set trigger is a hallmark of CZ rimfire rifles. It operates in two modes: a standard pull weight of approximately 3-4 pounds for general use, and a “set” mode that reduces the pull to under one pound for precise, controlled shots. This feature gives the shooter flexibility, allowing a heavier pull for hunting or a lighter, more predictable break for target work. The trigger is also user-adjustable for overtravel and sear engagement, though many shooters find the factory settings adequate for most applications.

The bolt action features a 60-degree lift, which provides ample clearance for scope mounting and allows for fast cycling without interfering with the optic. The action is glass-bedded from the factory, improving consistency and accuracy potential. The receiver is drilled and tapped for scope bases and also includes an 11mm dovetail rail, offering multiple mounting options for rings or one-piece bases. This compatibility simplifies scope selection and installation.

The detachable box magazine is flush-fitting and holds five rounds, which is standard for rimfire hunting and target shooting. The magazine release is located at the front of the trigger guard, allowing for quick reloads while maintaining a firing grip. The magazine itself is constructed from steel with a polymer base, offering durability and reliable feeding with standard velocity, high velocity, and subsonic .22 LR ammunition.

The overall build quality reflects CZ’s manufacturing standards. The metal surfaces are finished with a matte black oxide that resists corrosion and glare, while the stock’s textured grip panels provide a secure hold in wet conditions. The rifle is designed for disassembly without tools, making cleaning and maintenance straightforward. The bolt can be removed by pressing a button on the left side of the receiver, and the trigger group can be removed for deep cleaning.

Ideal Use Cases

• Varmint Hunting: The .22 LR caliber and heavy barrel make this rifle suitable for groundhogs, squirrels, and other small pests at moderate ranges. The adjustable stock allows for stable shooting from field positions, and the low report helps avoid disturbing surrounding wildlife.
• Target Shooting: The heavy barrel and adjustable trigger contribute to consistent accuracy at the range. This rifle is a solid choice for informal target shooting, plinking, or training new shooters on fundamentals.
• Competition: The CZ 457 platform is popular in rimfire benchrest and silhouette competitions. The AT-One stock’s adjustability and the single-set trigger provide a competitive edge for shooters who participate in such events.
• Home Defense (Limited): While not a primary defensive firearm, a .22 LR rifle can serve as a low-recoil option for home defense in certain situations, particularly for shooters who cannot handle larger calibers. However, this is not its primary intended use, and we recommend consulting local laws and training.

Compatibility Notes

• Ammunition: This rifle functions reliably with standard velocity, high velocity, and subsonic .22 LR ammunition. It is not designed for .22 Short, .22 Long, or .22 Magnum cartridges. For best accuracy, we recommend testing several brands of ammunition to find what your specific rifle prefers.
• Magazines: The rifle uses CZ 457 proprietary 5-round magazines. Aftermarket 10-round and 25-round magazines from CZ and reputable third-party manufacturers are available, though compatibility should be verified.
• Scopes and Mounts: The receiver has an 11mm dovetail rail and is drilled and tapped for #6-48 scope bases. Most rimfire scopes with 1-inch or 30mm tubes can be mounted using appropriate rings or bases. We recommend a scope with adjustable parallax for optimal performance at varying distances.
• Suppressors: The 1/2×28 threaded barrel accepts most .22-caliber suppressors. Ensure the suppressor is rated for rimfire pressures and is properly attached before use.
• Holsters and Slings: This rifle is not designed for holster carry. It accepts standard 1.25-inch sling swivels for use with a bipod or sling.

Frequently Asked Questions

1. Can this rifle be shipped directly to my address in Tennessee?
No. Per federal law, all firearms must be shipped to a licensed Federal Firearms License (FFL) dealer for transfer. We can ship to any Tennessee FFL dealer you choose. Once the rifle arrives, you will complete the standard ATF Form 4473 and a background check at the dealer before taking possession.

2. How does the FFL transfer process work for Tennessee residents?
After you place your order, we will request the FFL information from your chosen dealer. We ship the firearm to them via a common carrier. You will be contacted by the dealer when it arrives. You must bring a valid Tennessee driver’s license or state ID to complete the transfer. There is no state waiting period for long guns in Tennessee, though the dealer may have their own policies.

3. What ammunition is recommended for this rifle?
This rifle is chambered for .22 Long Rifle only. We recommend starting with standard velocity or high velocity lead round nose or hollow point ammunition from reputable manufacturers such as CCI, Federal, or SK. Avoid using hyper-velocity ammunition excessively, as it can accelerate wear. Subsonic ammunition works well for suppressed use and may offer improved accuracy in some barrels.

4. What warranty does CZ-USA provide for this rifle?
CZ-USA offers a limited lifetime warranty to the original purchaser against defects in materials and workmanship. This warranty covers the firearm’s service life but does not cover damage from misuse, neglect, or unauthorized modifications. For warranty service, contact CZ-USA directly. We also offer a 30-day return policy on new, unfired firearms for defects or issues identified upon inspection.

5. What is your return policy for firearms?
We accept returns on new, unfired firearms within 30 days of delivery if the item has a manufacturing defect or if we made an error in shipping. The firearm must be returned in its original packaging with all accessories. Once received and inspected, we will issue a refund or exchange. Used or fired firearms are not eligible for return due to safety and legal restrictions. Contact our customer service team for a return authorization before shipping.

Closing Call to Action

This CZ 457 AT-One Varmint is a dependable addition to any Tennessee shooter’s collection, built for precision work at the range or in the field. We ship directly to your chosen FFL dealer in Tennessee with fast, insured service. Order online today, or contact our team if you have questions about availability or compatibility.