Calibre: .22 Long Rifle (457 platform — barrels are user-swappable to other .22/.17/.22WMR options).

Action / bolt: Bolt-action with a 60° bolt throw, large bolt knob and dual extractors (standard CZ 457 action).

Barrel: commonly a 20″ (≈510–525 mm) heavy/match contour, cold-hammer-forged in many MDT/MDT-inletted variants; muzzle threaded ½×20 (varies by SKU).

Twist rate: 1:16″ (standard on many 457 match barrels).

Magazine: detachable 5-round polymer mag supplied (10- and 25-round options available).

Stock / chassis: MDT LSS-RF / XRS / ACC chassis (aluminium chassis, adjustable LOP and cheek, ARCA/RRS compatibility on many chassis).

Rail: integrated optics rail (Picatinny or 25 MOA pre-tilt on many models) for scope mounting.

Weight / overall length: ~3.4 kg / 7.5 lb and overall length ~39.8″ / 1010 mm for typical 20″-barrel configuration (varies with barrel length and chassis variant).

Pros: excellent out-of-the-box rimfire accuracy, modern ergonomics (chassis), easy to dress for PRS/NRL22 or tactical rimfire matches, wide aftermarket support.

Best for: competition rimfire shooters, precision training, anyone who wants a chassis-style .22 LR for long-range small-bore work.

Considerations: heavier and less “traditional” than a wood-stock rimfire; higher price than base 457 due to chassis; chassis adds features but some prefer classic stocks.