Gun Of The Week: Rock Island Armory TM22

posted on November 10, 2023

Watch the Gun Of The Week video above to learn about a fun, little .22 plinker. Imported by Rock Island Armory, the TM22 is built by Derya Arms of Turkey and is a semi-automatic rifle chambered for the ubiquitous .22 Long Rifle cartridge.

Rock Island Armory TM22 GUN OF THE WEEK text on image overlay white box .22LR rifle right-side view

Shooting .22 rimfire is a ton of fun, and the world of rimfire rifles is an incredible mix of firearm types, with configurations that range from traditional wood and steel, iron-sighted bolt-actions to contemporary designs fabricated from space-age materials and fashioned with cutting-edge features. The latter category is where the TM22 we have here on the range nestles nicely.

Rock Island Armory TM22 left-side view on white carbine rifle rimfire semi-auotmatic

The TM22 is a handy yet, robust little rimfire carbine and is the kind of gun you can spend all day on the range with and not break the bank. Though it has a general likeness to the AR with a few shared components, it is important to note that the TM22 is its own design, and a simple one to boot. Made mostly of 7075 aluminum, the TM22 is a blowback-operated semi-automatic, which means the energy from a fired round is used to push the bolt rearward upon firing. There is a simple spring inside to not only slow the bolt’s movement, but to also return the bolt to battery. In that process, a fresh round is stripped from the top of the magazine. It’s a simple, reliable operating system that’s popular in the world of semi-auto rimfires.

GUN OF THE WEEK AMERICAN RIFLEMAN text center screen gallery of nine images men shooting Rock Island Armory TM22 .22LR rifle carbine semi-automatic detail closeup images

With the TM22, you’ll get a split receiver, similar in concept to the AR with an upper and lower, only it doesn’t break apart like your traditional AR. The top of the receiver is more of a cover plate, which also provides a Picatinny optics rail. There is an AR-pattern polymer pistol grip attached to the lower. It’s an overmolded pattern with soft black rubber and lightly textured with finger grooves. There is also a buffer tube and endplate like that of the AR, too. A 10”-long, aluminum fore-end surrounds the gun’s 18” barrel. It provides M-Lok slots at the 3-, 6-, 9-, and 12-o’clock positions to accommodate any accessory you choose to install. The barrel comes threaded for 1/2X28 TPI-compatible muzzle devices.

Rock Island Armory TM22 rifle rimfire semi-auto carbine shown on dark table ominous with target shooting glasses and ammunition

On the NRA range, our testers noted a few hiccups along the way, which is not surprising considering that blowback actions tend to like certain ammo types. The TM22 we have here really only enjoys high-velocity ammunition, though this may change with the addition of a suppressor or a longer break-in period. Despite that, our testers thoroughly enjoyed their time with the TM22. The gun’s controls are intuitive—there’s a left-side charging handle and long and easy-to-reach safety lever. We found the 10-round magazines are well made and are easy to load. The gun’s light 2-lb. trigger made for easy, accurate shots on bullseye targets, and its quick reset made tactical-style drills more enjoyable, too.

Rock Island Armory TM22 Specifications
Manufacturer: Derya Arms (Turkey)
Action Type: blowback-operated, semi-automatic, rimfire rifle
Chambering: .22 Long Rifle
Receiver: 7075 anodized aluminum
Barrel: 18" carbon steel
Magazine: 10-round detachable box
Sights: none; Picatinny rail
Trigger: two-stage; 2-lb., 1-oz. pull
Overall Length: 34"
Weight: 5 lbs., 15 ozs.
MSRP: $348


Century Ctti Left Horman
Century Ctti Left Horman

Review: Century Arms Canik TTI Combat

Developed in collaboration with firearm trainer Taran Butler, the Canik TTI Combat handgun from Century Arms is packed with performance features.

HiViz Shooting Systems Introduces Sight Installation Program

Sight upgrades can be one of the easiest and most important upgrades to any handgun. However, not everyone has access to, or the ability to be, their own gunsmith. That’s why HiViz created this basic sight installation program.

I Have This Old Gun: Gallager Carbine

The Gallager carbine is one of the American Civil War's lesser-known cavalry arms, but it still used a unique design that allowed it to adapt to the metallic cartridge era that followed.

New For 2024: Heritage Mfg. Roscoe Revolver

Inspired by the classic snub-nose revolvers of yesteryear, the new Heritage Mfg. Roscoe is the company's first centerfire revolver.

2024 Pioneer Award: Brandon L. Maddox, Founder/CEO Silencer Central

Silencer Central Founder and CEO Brandon Maddox revolutionized the suppressor-buying industry, and his efforts have spurred greater suppressor ownership in the United States.

Review: Beretta APX A1 Full Size Tactical

The Beretta APX A1 Tactical is a second-generation iteration (available in both Full Size and Compact versions) of the company’s APX pistol line that launched in 2017.


Get the best of American Rifleman delivered to your inbox.