Description
The Diamondback Sidekick 22 LR WMR 5.5 inch revolver is a nine shot, western styled rimfire with two cylinders, so you can shoot inexpensive 22 LR or harder hitting 22 WMR from the same gun. This version has a 5.5 inch barrel, an aluminum and black Cerakote finish, Dima toned cylinders and black and grey laminate grips.

Diamondback Sidekick 22 LR WMR 5.5 Overview
Diamondback designed the Sidekick to blend single action styling with modern double action and single action convenience. You can thumb cock the hammer for a light single action shot or simply pull the trigger in double action. The swing out cylinder makes loading and unloading quick, and the second cylinder swaps in when you want 22 Magnum power. The frame is zinc alloy, keeping cost down, and sights consist of a blade front and an integral rear notch.
Two Cylinders, Two Cartridges
22 LR is cheap, quiet and ideal for plinking and training. 22 WMR adds velocity and energy for pests and small game. Always fire each cartridge only in its matching cylinder.
Nine Shot Capacity
Nine rounds per cylinder means more shooting and less loading compared with traditional six shot rimfire revolvers.
Finish and Grips
The two-tone aluminum and black Cerakote finish with Dima toned cylinders and laminate grips make this distributor special edition stand out.
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.
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: Diamondback Firearms
- Model: Sidekick, item DB0580A501
- UPC: 810035755819
- Caliber: 22 LR and 22 WMR (two cylinders)
- Action: Double action and single action
- Capacity: 9 rounds
- Barrel: 5.5 in.
- Frame: Zinc alloy
- Finish: Aluminum and black Cerakote, Dima toned cylinders
- Grips: Black and grey laminate
- Sights: Blade front, integral rear
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 Diamondback Sidekick 22 LR WMR 5.5 is a great fit for new shooters, campers and hikers, pest control on the farm, and anyone wanting an affordable, fun rimfire revolver.
Buy the Diamondback Sidekick 22 LR WMR 5.5 at MAG5 Firearms
MAG5 Firearms is a family-owned FFL in Collegeville, Pennsylvania. Order the Diamondback Sidekick 22 LR WMR 5.5 online and ship it to your local FFL dealer, or browse our full selection of firearms for more revolvers. For factory details, visit Diamondback Firearms.






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