Ruger Mark IV 22/45 Tactical .22 LR, 4.5 in Threaded Bull Barrel, Blued, 2026 Production, 2 Magazines
This Mark IV 22/45 Tactical stands out for its one-button takedown, 4.5 in threaded bull barrel with protector, and factory top Picatinny rail while retaining fully adjustable iron sights. Built in 2026 with a blued alloy-steel upper and the 22/45 polymer grip frame, it ships with two 10-round magazines and comes in excellent condition.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Exterior surfaces show a few minor scratches and blemishes.
What’s Included
- Ruger factory hard case
- Two 10-round magazines
- Manual
- Safety delete (not installed)
The Tactical configuration pairs a robust blued alloy-steel upper and receiver with a 4.5 in bull barrel threaded 1/2-28 and capped by a thread protector. The result is a balanced .22 LR pistol with durable construction and easy accessory compatibility via the factory top Picatinny rail while retaining adjustable iron sights.
Ruger’s Mark IV one-button takedown simplifies fieldstripping and maintenance. The 22/45 polymer grip frame provides the familiar 1911-style angle, and the replaceable checkered grip panels allow straightforward grip customization.
The action is a semi-automatic, straight blowback design with a 10+1 capacity. Magazines are drop-free, and the left-side push-button magazine release makes reloads intuitive. The barrel’s 1:16 RH twist is optimized for a wide range of .22 LR loads.
Controls include an ambidextrous manual safety and a magazine disconnect. The sighting system uses a fixed-blade front and a fully adjustable rear, delivering clear, precise alignment out of the box.
Manufactured in 2026, this pistol corresponds to Ruger part number 40190 and carries an MSRP of $449.

