9mm Revolvers: Why They Exist, and the LCRx vs Charter Pitbull

9mm is the cheapest, most available centerfire pistol round. Putting it in a revolver takes some engineering, because 9mm has no rim.

Current as of 2026-09-22 · Review by 2026-12-21
Short answer: The Ruger LCRx 9mm uses moon clips for fast, reliable extraction and reloads. The Charter Arms Pitbull uses a spring extractor, so it needs no clips. Choose the LCRx if you will practice with moon clips, and the Pitbull if you want to load loose rounds.

Why 9mm in a revolver?

9mm is usually cheaper and more available than .38 Special or .357 Magnum. A 9mm revolver shares ammunition with most semi-automatic pistols, which makes it a practical backup or companion gun. It also gives new shooters a revolver in a caliber they may already own.

The rim problem

Revolver cartridges like .38 Special have a rim that the extractor star pushes against to eject the empties. 9mm is rimless, so there is nothing for a standard extractor to grip. Makers solve it in two ways.

Ruger LCRx 9mm

The LCRx is the exposed-hammer version of Ruger's lightweight LCR, with a polymer fire-control housing. The 9mm version is a five-shot revolver designed around moon clips. It is light enough to carry comfortably, with Ruger's well-regarded LCR trigger.

Ruger LCRx 9mm

9mm · 5-shot · moon clips

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Charter Arms Pitbull 9mm

The Pitbull is Charter's rimless-cartridge revolver. Its spring extractor system means you load individual 9mm rounds just like .38 Special. That makes it simpler to feed, especially if you do not want to manage clips.

Charter Arms Pitbull 9mm

9mm · 5-shot · no moon clips needed

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Convertible option

Charter also lists a revolver chambered for .357 Magnum, .38 Special and 9mm. Confirm the cylinder configuration on the listing. Our convertible revolver guide explains how convertible designs work.

Charter Arms convertible

.357 / .38 Special / 9mm listing

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Comparison

Ruger LCRx 9mmCharter Pitbull 9mm
ExtractionMoon clipsSpring extractors
Reload speedFast with a loaded clipLoose rounds or speed strip
HammerExposedSee listing
Best forClip users, fast reloadsSimplicity, no clips

Tips for 9mm revolvers

Loading moon clips

Loading moon clips by hand works but is slow and can bend the clip. Inexpensive loading and unloading tools make the job faster and protect the clips. Keep a few spare clips, because a bent one can bind the cylinder. Moon clips are also why many competitive revolver shooters favor rimless cartridges: a loaded clip reloads the whole cylinder in one motion.

Bottom line

If you already shoot 9mm pistols, a 9mm revolver keeps your ammunition simple. Pick the LCRx for moon-clip speed, or the Pitbull if you want to load loose rounds.

Frequently asked questions

Do 9mm revolvers need moon clips?

Most do, because 9mm is rimless. Charter Arms' Pitbull uses spring extractors instead, so it does not need clips.

Is a 9mm revolver good for carry?

It can be, especially if you want to share ammunition with a pistol. Test your defensive load for reliability and bullet jump.

Can I shoot 9mm in a .357 revolver?

Only in revolvers specifically designed or configured for 9mm. Never fire 9mm in a .357 cylinder not made for it.

How many rounds does the LCRx 9mm hold?

Five.

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