First Look: Ruger 22/45 Lite Co-Witness

Run your iron sights and a smaller dot as well.

posted on May 5, 2023
Ruger 22/45 Lite Co-Witness

Sturm, Ruger & Company, Inc. is adding a new variant to its popular product family of Ruger Mk IV 22/45 Lite .22LR semi-automatic target pistols. The latest Mk. IV 22/45 Lite pistol comes optics-ready from the factory, with a standard plate cut for the popular Shield RMS footprint in place of the typical Picatinny rail section usually found on top of the standard Mk IV 22/45. This latest version also comes with a fiber-optic front sight and an adjustable rear sight that are both designed to co-witness with a mounted electronic red dot sight.

These .22LR semi-automatic pistols make use of the single stack 1911’s traditional 18-degree grip angle and are built around polymer frames. Receivers are anodized aluminum with varying lightening cuts, and in the case of this latest model, it ships with clear anodizing for that classic black and white customized pistol look. 

Ruger 22/45 Lite Co-witness Features:

  • Accurate sighting system features an adjustable rear sight, fiber optic front sight on a ventilated rib and mounting position for Shield RMS pattern optics to co-witness with the iron sights (optic not included)
  • Simple, one-button takedown for quick and easy field-stripping and proper chamber-to-muzzle cleaning
  • Comfortable, precision-molded polymer grip frame
  • Serrated frontstrap and checkered backstrap
  • Lightweight, ventilated, aerospace-grade aluminum receiver
  • Tensioned stainless steel barrel
  • Features a 1/2-28 tpi pattern for popular muzzle accessories, including the Ruger Silent-SR sound suppressor (thread protector included)
  • Cold hammer-forged barrel for better accuracy and longevity
  • Ergonomic bolt stop
  • Checkered, 1911-style grip panels for a great appearance and comfortable, non-slip hold
  • Internal cylindrical bolt construction ensures permanent sight-to-barrel alignment and higher accuracy potential than conventional moving-slide designs
  • Contoured ejection port and easy-to-grasp bolt ears allow for durable and reliable operation round after round
  • Ambidextrous manual safety can be converted to left-side with included washer
  • Features push-button magazine release on the left side of the frame
  • Magazine disconnect prevents discharge when the magazine has been removed
  • Also includes two 10-round magazines
  • MSRP: $719

Please visit for more information on this pistol or other products from Sturm, Ruger & Co.


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