The Ruger Mark IV 22/45 Tactical in Burnt Bronze is a .22 LR rimfire pistol with a threaded barrel and Ruger’s 1911-style polymer grip frame (Ruger model 40193). The barrel is threaded 1/2×28, so a rimfire suppressor or muzzle device attaches directly, and the one-button takedown tilts the barrel and receiver off the frame without tools for fast cleaning. A cold hammer-forged barrel and the Mark IV’s internal cylindrical bolt keep the sights and bore aligned shot after shot. Burnt Bronze sets it apart from the standard black Tactical, and the checkered 1911-style grips give it a familiar feel. It works as a quiet-rimfire trainer, a plinker or a platform for a red dot.

Key Specifications

• The chambering is .22 LR, an inexpensive rimfire cartridge that makes high-volume practice affordable.
• Magazine capacity is 10+1, ten rounds in the magazine plus one chambered for longer strings between reloads.
• The barrel is threaded 1/2×28 and ships with a thread protector, so muzzle accessories attach without a gunsmith.
• The receiver is drilled and tapped for Weaver- or Picatinny-style rails, which is how optics are mounted on the Mark IV.
• The safety is an ambidextrous manual safety that Ruger notes can be converted to left-side only with the included washer.

Frequently Asked Questions

Is the barrel threaded for a suppressor? Yes. The barrel is threaded 1/2×28 and comes with a thread protector, the common pitch for rimfire suppressors and muzzle devices.

How do I mount a red dot on the Mark IV 22/45 Tactical? The receiver is drilled and tapped for Weaver- or Picatinny-style rails, so a rail base or optic mount bolts straight to it.

Buy the Ruger Mark IV 22/45 Tactical .22 LR Pistol, Threaded Barrel, Burnt Bronze

Burnt Bronze is a finish you will not mistake for the usual black rimfire pistol on the next bench. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and see more semi-auto handguns in the same category.