CIMARRON THUNDERBALL 9MM 3.5″ 6RD NK

The Cimarron Thunderball 9mm 3.5″ 6rd NK is a single-action revolver that packs a 9mm punch in a compact, nickel-finished frame with elegant birdshead walnut grips. Chambered in 9mm Luger, this 3.5-inch barrel wheelgun blends Old West style with modern ammo availability, making it a natural for collectors who want to shoot without hunting down .38 Special or .45 Colt. It’s a standout piece for any gun show table or range bag.

Manufacturer	Cimarron Firearms (per manufacturer specs)
Model	Thunderball
Material	Steel frame, walnut grips
Compatibility	9mm Luger ammunition
Finish	Nickel
Weight	Approximately 30 oz (empty, per manufacturer specs)
Condition	New

Key Features

• Birdshead Walnut Grips – Why it matters: These compact grips reduce bulk for a secure, natural point-of-aim, especially when shooting one-handed or from a pocket holster.
• Nickel Finish – Why it matters: A durable, corrosion-resistant surface that adds a mirror-like shine, reducing maintenance and preserving the revolver’s show-quality appearance.
• Front Blade Sight & Rear Notched Frame – Why it matters: Provides a classic, fast-acquisition sight picture that works in low light and keeps the profile sleek without snagging on draw.
• Single-Action Trigger – Why it matters: Delivers a crisp, light pull (typically 3-4 lbs) that enhances accuracy at the range and gives that authentic cowboy-style shooting experience.
• 9mm Chambering – Why it matters: Uses affordable, widely available 9mm ammunition, making this revolver practical for regular practice without the cost of traditional revolver calibers.

Who It’s For

This revolver is built for collectors who crave rare single-action designs with a modern twist. It’s also ideal for gun show enthusiasts who want a conversation piece that actually shoots—and shoots well—without breaking the bank on ammo. If you appreciate the look of a nickel-plated six-shooter but prefer the convenience of 9mm, this is your wheelgun.

Pros & Cons

• Pros: Authentic single-action feel; 9mm affordability and availability; compact birdshead grip for easy carry; nickel finish resists tarnish; reliable Cimarron build quality.
• Cons: Single-action only—no double-action capability—so follow-up shots require manual hammer cocking. The birdshead grip may feel small for shooters with large hands.

Comparison

Feature	Cimarron Thunderball 9mm	Zev Technologies OZ9	Lone Wolf Distributors Timberwolf
Action Type	Single-action revolver	Striker-fired semi-auto	Striker-fired semi-auto
Barrel Length	3.5 inches	4.49 inches	4.6 inches
Capacity	6 rounds	17+1 rounds	17+1 rounds
Finish	Nickel	Black nitride	Black Cerakote
Weight (empty)	~30 oz	~24 oz	~25 oz
Best For	Collectors, cowboy-action shooters	Competition, duty use	Custom builds, range use

FAQ

Is the Cimarron Thunderball 9mm compatible with .38 Special or .357 Magnum?

No. This revolver is chambered exclusively for 9mm Luger (9x19mm). Do not attempt to load .38 Special or .357 Magnum—it will not fit and could damage the cylinder.

Does the Thunderball use moon clips for 9mm?

Yes, the Thunderball requires moon clips for reliable extraction of 9mm cartridges. Most shooters find that moon clips speed up reloads and ensure consistent headspace.

What is the barrel twist rate on the 3.5-inch Thunderball?

Per Cimarron specs, the barrel has a 1:10 twist rate, which stabilizes standard 115- to 147-grain 9mm bullets well for accuracy at typical revolver distances.

Can I mount a scope or red dot on this revolver?

No. The Thunderball has no optics-ready cut or rail. It’s designed for traditional iron-sight shooting—part of its classic single-action appeal.

Is the nickel finish prone to scratching?

Nickel is harder than blued steel but can scratch if abused. Avoid harsh solvents and store in a soft case to keep the finish looking sharp.

Why Buy From Us?

• ✓ Nationwide delivery (all 50 states)
• ✓ Ships 1-2 business days
• ✓ 30-day returns
• ✓ Secure checkout

Last updated: April 2026

Browse more revolvers or check our single-action handguns and nickel-finish firearms.