Description
The CZ 457 ERGO is based on the popular and proven CZ 457 modular platform, upgraded with a new thumbhole stock inspired by the design of the CZ 600 ERGO. The polymer stock, reinforced with fiberglass and equipped with a removable cheekpiece, provides exceptional comfort and high durability, while maintaining a very pleasant weight.
The CZ 457 ERGO is equipped with 525 mm cold-forged barrels with standardized threads for mounting muzzle devices. It is available in a version with mechanical sights or without sights, which is ideal for mounting a riflescope. In the version with mechanical sights, the mounting holes can be closed with the included plugs after removing the sights.
Technical specifications
| Specification | .22 LR (with sights) | .22 LR (without sights) | .17 HMR (with sights) | .17 HMR (without sights) |
| Caliber | .22LR | .22LR | .17 HMR | .17 HMR |
| Thread pitch / Flutes | 1:16 / 6 | 1:16 / 6 | 1:9 / 6 | 1:9 / 6 |
| Magazine capacity | 5 | 5 | 5 | 5 |
| Compensator | No | No | No | No |
| LOP (length of hoof) | 355mm | 355mm | 355mm | 355mm |
| Cheekbone | Removable | Removable | Removable | Removable |
| Stock material | Polymer | Polymer | Polymer | Polymer |
| Stock surface treatment | None | None | None | None |
| Muzzle Thread | 1/2″ × 20 | 1/2″ × 20 | 1/2″ × 20 | 1/2″ × 20 |
| Barrel profile | Light | Light | Light | Light |
| Barrel length | 525mm | 525mm | 525mm | 525mm |
| Total length | 976 mm | 976 mm | 976 mm | 976 mm |
| Weight | 2.3 kg | 2.3 kg | 2.3 kg | 2.3 kg |
| Trigger | Single-stage, adjustable | Single-stage, adjustable | Single-stage, adjustable | Single-stage, adjustable |
| Trigger force | 11.1–14 N | 11.1–14 N | 11.1–14 N | 11.1–14 N |
| Sights | Fixed | No | Fixed | No |
| Category | C1 | C1 | C1 | C1 |
| Warranty | 2 years | 2 years | 2 years | 2 years |
