Description
The Ruger Mark IV 22/45 .22 LR 4.4in Threaded Barrel, 2x10rd is a rimfire pistol built for shooters who want a reliable training and plinking platform without the bulk or cost of centerfire ammo. The 4.40-inch cold hammer-forged bull barrel with 1/2-28 threading accepts suppressors or compensators, while the factory Picatinny rail lets you mount a red dot for faster target acquisition. With the one-button takedown system, cleaning is quick and tool-free. Priced at $349.43, this is a solid value for anyone looking to practice fundamentals or run a suppressor on a .22.
| Manufacturer | Ruger |
|---|---|
| Model | Mark IV 22/45 |
| Material | Steel barrel, polymer frame (per manufacturer specs) |
| Compatibility | .22 LR ammunition; 1/2-28 threaded muzzle devices; optics with Picatinny mount |
| Finish | Blued finish on barrel and receiver sections (per manufacturer specs) |
| Weight | Approximately 32 oz unloaded |
| Condition | New |
Key Features
- One-Button Takedown: Press one button and the upper pivots forward for full access to the bolt and barrel — no tools needed. This makes cleaning fast and encourages you to maintain your pistol regularly.
- Cold Hammer-Forged Barrel: The 4.40-inch bull barrel is hammer-forged from steel, which creates consistent rifling that holds up to thousands of rounds. You get better accuracy and longer barrel life compared to button-rifled barrels.
- Threaded Barrel (1/2-28): The factory threads let you attach a suppressor or compensator without buying an aftermarket barrel. This is a standard thread pattern, so most rimfire cans will fit right on.
- Factory Picatinny Rail: The top of the receiver has a full-length rail for mounting a red dot sight or mini reflex. You don’t need a dovetail adapter or gunsmithing to run optics.
- Two 10-Round Magazines: The pistol comes with two magazines, so you can keep one loaded while the other is in the gun. That means less downtime at the range.
Who It’s For
This Ruger Mark IV 22/45 is for new shooters who want a .22 to learn fundamentals without developing flinch, and for experienced shooters who need a training tool that mirrors their centerfire pistol’s grip angle. The 1911-style grip angle (the 22/45 part) makes it a natural trainer if you carry a 1911 or any pistol with a similar feel. It’s also for anyone who wants a suppressor host — the threaded barrel and fixed barrel design keep the action quiet and reliable. If you’re a plinker or small-game hunter, the accuracy and 10-round capacity work for both.
Pros / Cons
- Pro: The one-button takedown is genuinely easy — you can field strip this pistol in seconds, which is a huge improvement over earlier Mark models.
- Pro: The 22/45 grip angle fits most shooters’ hands and matches the feel of many popular centerfire pistols.
- Pro: Threaded barrel from the factory saves you the cost and hassle of replacing the barrel later.
- Con: The blued finish is prone to rust if you don’t keep it lightly oiled, especially in humid conditions — it’s not a stainless or coated finish.
- Con: The polymer frame can feel a bit light compared to all-metal Mark IV models, but that also keeps the weight down for carry or long range sessions.
Comparison: Ruger Mark IV 22/45 vs. Competitors
| Feature | Ruger Mark IV 22/45 | Zev Technologies OZ9 | Geissele Automatics Super 22 |
|---|---|---|---|
| Caliber | .22 LR | 9mm | .22 LR |
| Barrel Length | 4.40 inches (threaded) | 4.5 inches | 5.0 inches |
| Weight | ~32 oz | ~26 oz | ~28 oz |
| MSRP | $349.43 | $1,200+ | $750+ |
| Frame Material | Polymer | Aluminum | Aluminum |
| Threaded Barrel | Yes (1/2-28) | Optional | Yes |
| Optic Ready | Picatinny rail | RMR cut | Picatinny rail |
The Ruger Mark IV 22/45 comes in at a fraction of the price of the Zev OZ9 or Geissele Super 22, and it’s purpose-built for rimfire training. The Zev is a high-end 9mm race gun, while the Geissele is a premium .22 — both are more expensive and have fewer aftermarket parts than the Ruger. For the price, the Mark IV 22/45 offers the best value in a dedicated .22 trainer with a threaded barrel.
Frequently Asked Questions
Does this pistol come with a suppressor?
No, the Ruger Mark IV 22/45 is sold as a firearm only. The barrel is threaded to accept a suppressor (1/2-28 thread pattern), but you will need to purchase the suppressor separately through a licensed dealer and comply with NFA regulations.
What optics fit the factory rail?
The Picatinny rail accepts any red dot sight with a standard Picatinny or Weaver mount — common options include the Vortex Venom, Burris FastFire, Sig Romeo5, and Holosun 407K. You may need a low-profile mount or adapter plate for some mini reflex sights.
Is the grip angle the same as a 1911?
Yes, the 22/45 designation means the grip frame has a 1911-style angle, which is roughly 18 degrees from vertical. This makes it a good trainer if you shoot a 1911, Browning Hi-Power, or any pistol with a similar grip angle.
Can I use high-velocity .22 LR ammo in this pistol?
Yes, the Ruger Mark IV 22/45 is designed to cycle standard and high-velocity .22 LR ammunition. Avoid subsonic loads unless you are shooting suppressed — they may not cycle the action reliably due to lower recoil energy.
Why Buy from Us
- ✓ Nationwide delivery to all 50 states
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Shop more in our Semi Auto Handguns or browse Rimfire Pistols and Threaded Barrel Pistols.
Last updated: April 2026
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