Derya Arms Introduces TM22 Pump, a New .22 LR Pump-Action Rifle

Derya Arms is expanding its TM22 rimfire rifle lineup with the introduction of the TM22 Pump, a magazine-fed .22 LR pump-action rifle available with 18-inch and 20-inch barrels. Combining traditional pump-action operation with modern features, the new rifle offers interchangeable magazines, a threaded barrel, and an adjustable stock in a lightweight platform.

The TM22 Pump joins Derya’s existing family of .22 LR rifles, bringing a manually operated action to a platform previously associated with semi-automatic designs. With two barrel configurations and compatibility with existing TM22 magazines, the new model offers a different shooting experience while maintaining several familiar features of the series.

Classic Pump-Action Meets Modern Rimfire Design

Unlike the semi-automatic TM22 models, which cycle using energy from the fired cartridge, the TM22 Pump requires the shooter to manually operate the fore-end to eject a spent casing and chamber the next round.

This traditional pump-action design offers a hands-on shooting experience while retaining the convenience of detachable box magazines.

The rifle uses the same 10-round magazines found throughout the TM22 family and is compatible with aftermarket 15- and 25-round magazines, where permitted by law.

For existing TM22 owners, magazine compatibility provides a practical connection between the pump-action and semi-automatic models.

Two Barrel Options, One Platform

Derya offers the TM22 Pump in two configurations, with the primary difference being barrel length.

Both models feature rifled target barrels, a top Picatinny rail for mounting compatible optics, and a front bead sight.

The threaded muzzle accommodates compatible muzzle devices and suppressors, subject to applicable regulations. GunBroker previously covered Derya’s own 1/2”-28 rimfire suppressor in Derya Arms Introduces the OBone, Its First Suppressor.

At approximately 4.85 pounds unloaded, the TM22 Pump is designed to remain relatively lightweight despite its traditional rifle profile.

Adjustable Stock and Practical Features

The TM22 Pump pairs its classic styling with adjustable stock components intended to accommodate different shooters.

An adjustable cheek pad helps shooters establish a consistent cheek weld, while interchangeable basepads allow adjustments to the rifle’s length of pull.

The top-mounted Picatinny rail provides an option for adding compatible optics, while the front bead sight offers a simple aiming reference.

Together, these features give the rifle a combination of traditional pump-action operation and modern accessory compatibility without substantially changing the TM22 platform’s overall design.

Building on the TM22 Family

Derya’s TM22 series has focused on providing accessible rimfire rifles with modern features. The introduction of a pump-action model broadens the lineup beyond its existing semi-automatic offerings. For a look at one of those semi-automatic models, see Derya Arms Launches TM22 Flash.

“The TM22 has always been the underdog that punches above its weight,” said Dustin Jones, Vice President of Derya Arms.

Jones described the new model as a way to combine the familiar TM22 magazine system and adjustable features with a traditional pump-action experience.

The TM22 Pump also marks another addition to Derya’s growing U.S. product portfolio, which includes rimfire rifles, lever-action firearms, pistols, and shotguns.

Pricing, Availability, and Included Accessories

Both TM22 Pump configurations carry a suggested retail price of $429 and are available through Derya’s authorized dealer network nationwide.

Each rifle ships with two 10-round magazines, an Allen key, and a documentation package containing the owner’s manual and WTTA flyer.

According to Derya, both barrel configurations are offered in versions compliant with California, Maryland, and Massachusetts requirements. Buyers should verify applicable state and local regulations before selecting a configuration.

Final Thoughts: Where the TM22 Pump Fits in the Lineup

The TM22 Pump introduces a different operating system to Derya’s established rimfire platform without abandoning the magazine compatibility and accessory features found throughout the series.

Its combination of manual pump-action cycling, detachable magazines, adjustable stock, and two barrel options distinguishes it from the existing semi-automatic TM22 models.

For rimfire enthusiasts interested in traditional action types with modern features, the TM22 Pump adds another configuration to consider.

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