Description
The Pietta King Trio 357 9mm 38 Super 5.5 in. is a single action 1873 style revolver from Pietta of Italy with a 5.5 inch round barrel and three interchangeable six-shot cylinders for 357 Magnum and 38 Special, 9mm Luger and 38 Super. It has a color case hardened frame and walnut grips.

Pietta King Trio 357 9mm 38 Super 5.5 in. Overview
LLI Pietta has built classic single action revolvers in Italy for decades, and the King Trio adds remarkable versatility to the 1873 design. It comes with three interchangeable cylinders, so one revolver can shoot 357 Magnum and 38 Special, 9mm Luger, or 38 Super. Swapping cylinders takes only a moment with the base pin. The frame is color case hardened steel with a brass backstrap and trigger guard, and the two-piece walnut grips give it a traditional look. 5 inch round rifled barrel.
A four position hammer, a fixed blade front sight and a notched rear sight complete the classic setup. 08 inches long.
One Revolver, Four Cartridges
The King Trio lets you shoot whatever ammunition is available or affordable. Practice with 38 Special or 9mm, hunt or protect with 357 Magnum, or enjoy the flat-shooting 38 Super. Always make sure the correct cylinder is installed for the cartridge you load.
Classic Single Action Handling
Like the original 1873, the King Trio loads one round at a time through the loading gate and is cocked for each shot. The four position hammer adds an extra margin of safety, but traditional single action practice is still to load five rounds and rest the hammer on an empty chamber unless the manual says otherwise.
Care and Finish
Color case hardening is beautiful but needs care: wipe the frame with a lightly oiled cloth after handling and avoid harsh solvents. Clean each cylinder after use, and keep the spare cylinders oiled and stored safely.
Practice and Training
Regular practice builds confidence and safe handling. Start at close range, focus on sight alignment and a smooth trigger press, and work back as your groups tighten. Dry fire with snap caps at home to improve your trigger control between range trips.
Choosing Ammunition
Try several brands and bullet weights to see what feeds reliably and groups best in your handgun. Use quality full metal jacket loads for practice and proven hollow points for defense, and confirm reliable function with your defensive load before carrying it.
Care and Maintenance
Clean the barrel, slide or cylinder and frame after shooting, apply a light coat of quality lubricant to moving parts, and store the handgun unloaded in a locked case or safe away from children.
Safe Storage
Store handguns unloaded in a locked safe, lockbox or with a cable lock, and keep ammunition separate when children are in the home. Quick access safes keep a defensive handgun secure but available. Teach everyone in the household basic firearm safety rules.
Recommended Accessories
A quality holster, spare magazines, eye and ear protection and a cleaning kit round out any handgun purchase. For defensive use, add a weapon light and practice drawing safely from your holster with an unloaded gun before carrying.
Ordering From MAG5
Choose your local FFL dealer at checkout and we ship directly to them. Once the firearm arrives, your dealer runs the background check and completes the transfer paperwork. Most dealers charge a modest transfer fee, so ask about it before you order.
State Laws
Firearm, magazine and transfer laws vary by state. Check your local laws and confirm your receiving dealer can complete the transfer.
Specifications
- Manufacturer: F.LLI Pietta, Italy
- Model: King Trio
- Manufacturer SKU: SA73-3071/2H/CY9LU/CY357
- UPC: 8052464214501
- Caliber: 357 Magnum / 38 Special, 9mm Luger, 38 Super (3 cylinders)
- Action: Single action revolver
- Barrel: 5.5 in round, rifled
- Capacity: 6 rounds
- Cylinders: Three, fluted, interchangeable
- Frame: Color case hardened steel
- Backstrap and Trigger Guard: Brass
- Grips: Two-piece walnut
- Front Sight: Fixed blade
- Rear Sight: Notched
- Hammer: Four position
- Overall Length: 11.08 in
- Weight: about 42.2 oz
Before You Buy
Federal law requires handguns to ship to a licensed FFL dealer, and you must be 21 or older to purchase a handgun from a dealer. You will complete a background check at your dealer. Check your local laws before ordering.
Who It Is For
The Pietta King Trio 357 9mm 38 Super 5.5 in. is a great fit for single action fans and cowboy shooters who want one revolver that shoots several common cartridges.
Buy the Pietta King Trio 357 9mm 38 Super 5.5 in. at MAG5 Firearms
MAG5 Firearms is a family-owned FFL in Collegeville, Pennsylvania. Order the Pietta King Trio 357 9mm 38 Super 5.5 in. online and ship it to your local FFL dealer, or browse our full selection of firearms for more revolvers. For factory details, visit Pietta.







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