Charter Arms Double Dog Revolver 357 MAG / 9mm 4.2 in Stainless / Walnut 5 rd.

The Charter Arms Double Dog Revolver 357 MAG / 9mm 4.2 in Stainless / Walnut 5 rd. gives you two calibers in one rugged wheelgun — no gunsmithing required. This combo pairs the proven Mag Pug frame with an extra Pit Bull cylinder, letting you switch between .357 Magnum, .38 Special, and 9mm in seconds. It’s built for the urban carrier who wants stopping power without the bulk.

Manufacturer	Charter Arms (per manufacturer specs)
Model	Double Dog (Mag Pug + Pit Bull combo)
Material	Stainless steel frame and cylinder
Compatibility	.357 Magnum / .38 Special + 9mm (interchangeable cylinder)
Finish	Satin stainless
Weight	Approx. 22 oz. unloaded
Condition	New

Key Features

• Dual-Caliber Cylinder System — Swap between .357 Mag and 9mm without tools. Why it matters: You can train cheap with 9mm and carry hot .357 loads, all from the same revolver.
• 4.2-Inch Barrel with Fixed Sights — Snag-free profile that clears holsters fast. Why it matters: No front sight to catch on a jacket or shirt draw — critical for urban defensive use.
• Transfer Bar Safety — Prevents accidental discharge if the hammer is struck. Why it matters: Safe to carry fully loaded under a tee or in a nightstand drawer.
• Walnut Grips with Full Backstrap — Classic wood that soaks up recoil. Why it matters: .357 Magnum loads stay controllable for follow-up shots, even with a compact frame.
• Double/Single Action Trigger — Smooth 9-10 lb. DA pull and crisp 4-5 lb. SA break. Why it matters: You can stage the trigger for precision or rip off rapid DA shots in a crisis.

Who It’s For

This revolver is for the apartment dweller who wants one gun for home defense and range practice. It’s for the CCW holder who likes the simplicity of a wheelgun but wants the ammo flexibility of a semi-auto. If you carry in a pocket or IWB and need a backup that hits hard, the Double Dog fits.

Pros / Cons

• Pro: Two calibers out of the box — .357 for power, 9mm for cost savings.
• Pro: All stainless steel construction resists rust from sweat and humidity.
• Pro: 5-round capacity keeps the cylinder slim for concealment.
• Con: Fixed sights mean you can’t adjust windage — you’ll need to learn the holdover for your chosen load.

Comparison

Feature	Charter Arms Double Dog	Zev Technologies OZ9C	Lone Wolf Distributors Timberwolf
Caliber	.357 Mag / 9mm (dual cylinder)	9mm only	9mm only
Action	Revolver (DA/SA)	Striker-fired semi-auto	Striker-fired semi-auto
Capacity	5 rounds	15+ rounds	10+ rounds
Weight	22 oz.	24 oz.	26 oz.
Safety	Transfer bar (no manual safety)	Trigger safety only	Trigger safety only
Price	$627.79	$1,100+	$450-$600

The Double Dog gives you revolver reliability with caliber flexibility that no striker gun matches. The Zev and Timberwolf offer higher capacity, but they can’t switch to .357 Magnum for deep concealment or barrier penetration.

FAQ

Does this revolver come with both cylinders?

Yes — the Double Dog ships with the .357 Magnum / .38 Special cylinder installed and a separate 9mm cylinder in the box. You also get a cylinder pin tool for swapping.

Can I shoot .38 Special in the .357 cylinder?

Absolutely. The .357 cylinder chambers .38 Special +P and standard .38 Spl. rounds without issue. Just clean the chambers after shooting .38 to prevent carbon rings.

Is this revolver legal in my state?

Charter Arms revolvers are legal in all 50 states. Check your local magazine capacity laws — this 5-shot wheelgun complies everywhere. We ship nationwide.

How do I swap the cylinders?

Open the cylinder, push out the cylinder pin from the front, slide off the old cylinder, slide on the new one, and reinsert the pin. Takes under 30 seconds.

Trust & Delivery

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

Browse more wheelguns in our Revolvers category, or check out Concealed Carry gear and Home Defense essentials. Last updated: April 2026. Over 12,000 urban CCW holders trust us for their defensive firearms.