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Mark IV 22/45 Tactical Flat Dark Earth (FDE) Rimfire Pistol

$329.00

Mark Iv 22/45 Tactical Flat Dark Earth (Fde) Rimfire Pistol — Reliable .22LR pistol with threaded barrel and Picatinny rail. Easy one-button takedown. Ships from Wichita, KS.

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Kansas Gunshop is a Wichita, KS-based retailer specializing in firearms and accessories. The Mark IV 22/45 Tactical Flat Dark Earth (FDE) Rimfire Pistol is a reliable .22LR pistol built for training and plinking. Its threaded barrel and Picatinny rail offer significant versatility. Available now for $329.00.

Reviewed by Derek, Owner & FFL Holder at Kansas Gunshop. Kansas-licensed FFL dealer since 2008, NRA Range Safety Officer.

Last updated: April 2026

What is the Mark IV 22/45 Tactical FDE Rimfire Pistol?

The Mark IV 22/45 Tactical in Flat Dark Earth is a .22 Long Rifle pistol designed for target shooting, small game hunting, and training. It combines the proven Mark IV action with a comfortable 1911-style grip angle and replaceable grip panels, making it a familiar platform for many shooters. The FDE finish adds a distinct look, while the tactical features like the threaded barrel and Picatinny rail expand its utility. This isn’t just a plinker; it’s a tool for developing shooting fundamentals or for quiet pest control, especially with a suppressor attached. As an FFL holder, I’ve handled plenty of these. They’re straightforward, reliable, and a solid choice for anyone looking for a versatile rimfire pistol.

Product TypeRimfire Pistol
MaterialAlloy Steel Receiver, Polymer Frame
ManufacturingRuger
FinishFlat Dark Earth (FDE)
Hardness/QualityDurable, designed for high-round count use
Compatibility.22LR ammunition, most Mark IV accessories, standard 1/2″-28 threaded muzzle devices
Installation/UsageSimple takedown for cleaning, standard pistol operation
Weight34.4 oz (unloaded)
DimensionsOverall Length: 8.5 inches; Barrel Length: 4.4 inches
Country of OriginUSA
ConditionNew
SKU40159

What are the key features of this Mark IV?

  • One-Button Takedown: This is a major improvement over previous Mark series pistols. A single button allows the barrel-receiver assembly to tilt up and off the grip frame for easy cleaning. No more fumbling with pins or complicated disassembly. This feature alone makes the Mark IV a much more user-friendly firearm.
  • Threaded Barrel: The 4.4-inch cold hammer-forged barrel comes with a 1/2″-28 thread pitch. This means you can easily attach a suppressor for quieter shooting or a compensator to manage recoil, though recoil on a .22LR is minimal to begin with. For those in Kansas looking to hunt small game or just enjoy some backyard plinking without disturbing the neighbors too much, a threaded barrel is a significant advantage.
  • Picatinny Rail: An integral Picatinny rail is mounted on top of the receiver. This provides a stable platform for mounting optics like red dot sights, which can greatly improve accuracy and target acquisition, especially for new shooters or those with aging eyes.
  • Adjustable Sights: The pistol features an adjustable rear sight and a fixed front sight. This allows for precise zeroing, ensuring your shots land where you aim, whether you’re shooting at 7 yards or 25.
  • 1911-Style Grip Frame: The 22/45 designation means it has a polymer grip frame with a grip angle that mimics the classic 1911 pistol. This makes it a great training tool for those who primarily shoot 1911s or other full-size centerfire pistols, providing a familiar feel and natural point of aim.
  • Replaceable Grip Panels: The grip panels are replaceable, allowing for customization to fit individual hand sizes and preferences. This can enhance comfort and control during extended shooting sessions.
  • Ambidextrous Safety: The safety lever is ambidextrous, making it comfortable for both right and left-handed shooters to operate.
  • Capacity: It comes with two 10-round magazines, providing a good capacity for plinking or training without constant reloading.
  • Flat Dark Earth Finish: The FDE finish is a popular choice, offering a tactical aesthetic and a degree of corrosion resistance. It stands out from the typical black firearms.

Who is this Mark IV 22/45 Tactical FDE for?

Buy it if:

  • ✅ You’re looking for a reliable and accurate .22LR pistol for target practice or plinking.
  • ✅ You want a pistol with a threaded barrel for suppressor use or other muzzle devices.
  • ✅ You need a training pistol that mimics the grip angle and feel of a 1911.
  • ✅ You appreciate easy and tool-free disassembly for cleaning.
  • ✅ You want a platform for mounting optics like a red dot sight.
  • ✅ You’re a new shooter looking for a low-recoil, affordable-to-shoot firearm to learn fundamentals.
  • ✅ You enjoy small game hunting in Kansas where a .22LR pistol is appropriate.

Skip it if:

  • ❌ You prefer a traditional metal frame pistol (see our other rimfire pistols for options like the Ruger Mark IV Target).
  • ❌ You need a firearm primarily for self-defense (a .22LR is generally not recommended for primary self-defense, consider our centerfire handgun selection).
  • ❌ You’re on an extremely tight budget and only need the absolute cheapest plinker available (though this pistol offers significant value for its features).

What are the pros and cons?

Here’s what I’ve found handling these and getting feedback from folks who shoot them:

Pros:

  • Effortless Takedown: The one-button takedown is a game-changer for cleaning and maintenance. It’s significantly easier than older Mark series pistols.
  • Suppressor Ready: The threaded barrel is a huge plus for those who want to shoot quietly, whether for pest control, hunting, or just reducing noise at the range.
  • Optics Ready: The integrated Picatinny rail means you can mount your preferred red dot or scope right out of the box without needing to buy additional mounts.
  • 1911 Ergonomics: The 22/45 grip angle is familiar and comfortable for many shooters, making it an excellent training aid.
  • Ruger Reliability: Ruger has a long-standing reputation for building durable and reliable rimfire firearms, and the Mark IV series continues that tradition.
  • Affordable Ammunition: Being chambered in .22LR means practice is inexpensive, allowing for more trigger time.

Cons:

  • Polymer Frame: While durable, some shooters prefer the solid feel and weight of an all-steel or aluminum frame. If you prefer a heavier, all-metal feel, you might consider a standard Mark IV Target or Competition model.
  • Magazine Release: The magazine release is located on the side of the grip, similar to a 1911, which is fine for 1911 shooters but might feel different if you’re used to a European-style heel release or a paddle release.
  • Limited Capacity for Some: While 10 rounds is standard for many rimfire pistols, some might desire higher capacity magazines.

How does it compare to other rimfire pistols?

FeatureMark IV 22/45 Tactical FDEGeneric .22LR Plinker (e.g., Heritage Rough Rider)Premium .22LR Target Pistol (e.g., Browning Buck Mark Hunter)
MaterialAlloy Steel Receiver, Polymer FrameZinc Alloy Frame, Steel Cylinder/BarrelAluminum Alloy Frame, Steel Barrel
QualityGood, Ruger standardEntry-level, functionalVery good, precision-oriented
CompatibilityWide range of Mark IV accessories, 1/2″-28 muzzle devices, opticsLimited accessories, no threaded barrel, fixed sightsOptics ready (often), some accessory options, no threaded barrel on all models
ShippingShips from Wichita, KS via FFLShips from FFLShips from FFL
Lifespan/DurabilityDesigned for high-round count, long service lifeGenerally shorter lifespan, less robust for heavy useLong service life, built for accuracy and durability
Price$329.00~$150-200~$500-700+

When you look at the Mark IV 22/45 Tactical FDE, you’re getting a lot more versatility than a basic plinker like a Rough Rider. The threaded barrel and optics rail alone put it in a different league for serious shooters. Compared to a premium target pistol, the Mark IV 22/45 Tactical offers a more utilitarian, training-focused design with the added benefit of a threaded barrel, often at a more accessible price point. It’s a workhorse that can be adapted for various roles.

Watch: Ruger Mark IV 22/45 Tactical Review

Frequently Asked Questions

Is the Mark IV 22/45 Tactical FDE good for new shooters?

Yes, absolutely. The Mark IV 22/45 Tactical is an excellent choice for new shooters. The .22LR cartridge has very little recoil and is inexpensive, allowing for extended practice sessions without fatigue or breaking the bank. The 1911-style grip is comfortable, and the ability to add optics can make aiming easier for beginners.

Can I put a suppressor on the Mark IV 22/45 Tactical FDE?

Yes, the Mark IV 22/45 Tactical FDE comes standard with a 1/2″-28 threaded barrel. This is the common thread pitch for .22LR suppressors, making it suppressor-ready right out of the box. You will, of course, need to purchase a suppressor separately and comply with all NFA regulations.

What kind of ammunition does the Mark IV 22/45 Tactical FDE use?

This pistol is chambered in .22 Long Rifle (.22LR) ammunition. It’s designed to reliably feed a wide variety of .22LR loads, from standard velocity to high velocity. Experiment with different brands to find what works best for accuracy and reliability in your specific pistol.

How easy is it to clean the Mark IV 22/45 Tactical FDE?

Cleaning the Mark IV 22/45 Tactical FDE is significantly easier than previous generations of Mark series pistols due to its one-button takedown design. You simply press a button, and the barrel/receiver assembly pivots off the frame, providing easy access to the bore and breech face for cleaning. This is a major improvement that many shooters appreciate.

Where can I buy rimfire pistols online?

You can buy rimfire pistols and other firearms online at Kansas Gunshop (kansas-gunshop.com). We are a licensed FFL dealer based in Wichita, KS, and we can ship firearms to your local FFL dealer for transfer, provided all state and federal laws are followed.

Does the Mark IV 22/45 Tactical FDE come with magazines?

Yes, the Mark IV 22/45 Tactical FDE typically comes with two 10-round magazines from the factory. Additional magazines can often be purchased separately.

Is the Flat Dark Earth finish durable?

The Flat Dark Earth (FDE) finish on the Mark IV 22/45 Tactical is a factory applied, durable finish designed to withstand normal use and provide corrosion resistance. It’s a popular choice for its aesthetic appeal and practical benefits.

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