The Taurus 1-TX22131-RD is the TaurusTX 22 Compact T.O.R.O./optic-ready variant in .22 LR. The “RD” package designation indicates that it is sold with a red-dot optic, rather than simply being optic-ready. Taurus’s current TX22 Compact information confirms the compact’s 3.6″ barrel, 13-round capacity, optic-ready slide, and compact dimensions.

Taurus TX22 Compact 1-TX22131-RD

The dimensions and weight above come directly from Taurus’s current TX22 Compact manual.

What makes the Compact different

The TX22 Compact isn’t simply a TX22 with a shorter barrel. Taurus reduced the overall package substantially:

• Full-size TX22: approximately 7.6″ long and 19.8 oz
• TX22 Compact: 6.6″ and 16.5 oz

The Compact therefore saves about 1 inch of length and 3.3 oz compared with the current full-size TX22.

It also uses a 13-round magazine, with Taurus also listing a 10-round version for restricted jurisdictions.

Optic system

This is one of the most important features of 1-TX22131-RD.

The Compact’s slide is factory-cut for micro red-dot optics using the Holosun K footprint. Taurus specifically advertises the Compact as optic-ready for micro RDS. The slide also has lightening cuts to compensate for the additional weight of an optic.

The RD package goes a step further by including an optic rather than requiring you to purchase one separately.

One thing I’d verify on a particular boxed example is the exact optic model, because Taurus has sold TX22 Compact optic packages with different branded optics over time. Taurus’s current page shows a Riton optic version among the Compact configurations.

Barrel

The barrel is 3.6 inches and Taurus describes the Compact as having a threaded alloy-steel barrel from the factory.

That is useful for shooters who want the flexibility of the factory threaded configuration, although any muzzle accessory should be selected and used only in accordance with the manufacturer’s instructions and applicable law.

Sights

Even though the gun is optic-ready, it retains conventional sights:

• Front: high-contrast white dot
• Rear: drift-adjustable serrated sight

The serrations on the rear sight are intended to reduce glare.

Trigger and operating system

Taurus uses its Performance Trigger System (PTS) in the TX22 family. The Compact uses a striker-fired system with a smooth trigger pull and defined break.

The factory safety systems listed in the manual include:

• Striker block
• Trigger safety
• Manual safety on certain versions

The exact presence of the manual safety should be verified on the individual firearm because Taurus has produced different TX22 configurations.

Construction

The Compact is designed as a lightweight rimfire pistol:

Polymer frame + aluminum slide + alloy-steel barrel = 16.5 oz unloaded.

That’s considerably lighter than many similarly sized centerfire pistols, which is one of the reasons the TX22 Compact is popular as a training and recreational .22 LR platform.

Capacity

The standard Compact configuration is:

13-round magazine → 13+1 capacity

Taurus also lists a 10-round magazine configuration for the model.

The 13+1 figure in your listing therefore matches the standard-capacity Compact configuration.

Reliability considerations

The TX22 Compact has generally received favorable owner feedback, but .22 LR is inherently more ammunition-sensitive than centerfire cartridges. Rimfire ammunition varies considerably in priming consistency, bullet profile, and power.

For that reason, I would judge reliability based on the particular ammunition and individual pistol rather than assuming every .22 LR load will perform identically.

Taurus itself describes the Compact as being designed around reliability and uses slide-lightening cuts specifically to maintain reliable operation when an optic is installed.

Comparison with the full-size TX22

The current Taurus manual confirms the full-size TX22’s 4.6″/4.1″ barrel options, while the Compact is 3.6″.

What the “1-TX22131-RD” tells you

Breaking down the listing:

• 1 — Taurus product-number prefix
• TX22 — TaurusTX 22 family
• 1 — Compact model designation in the SKU
• 31 — black/13-round configuration
• RD — red-dot-equipped package

The important identifiers for verifying the firearm are therefore 1-TX22131-RD, TX22 Compact, .22 LR, 3.6″ barrel, and 13-round capacity.

Bottom line

The Taurus 1-TX22131-RD TX22 Compact is a 16.5-ounce, 6.6-inch-long .22 LR semi-automatic pistol with a 3.6-inch threaded barrel, 13+1 capacity, factory optic-ready slide, Picatinny rail, adjustable rear sight, and a bundled red-dot optic. It’s essentially the compact member of the TX22 family, emphasizing low weight and smaller dimensions while retaining a relatively large 13-round capacity.

If you’re comparing the three Taurus models you’ve asked about, the TX22 Compact is the lightest and smallest, while the full-size TX22 4.6″ is larger/higher-capacity, and the 942M Ultra-Lite is a completely different 8-shot .22 WMR revolver.