Diamondback Firearms Sidekick Birdshead Revolver .22LR/.22 WMR, 3" Barrel, 9-Round Capacity
Diamondback
The Diamondback Firearms Sidekick revolver in .22LR/.22 WMR is a versatile, budget-friendly option for shooters who want reliable rimfire performance without breaking the bank. Built on a zinc frame with a 4.5-inch barrel and dark gray Cerakote finish, the Sidekick handles both standard .22 Long Rifle and .22 Magnum ammunition with its convertible cylinder setup—give you real flexibility at the range or for small-game hunting. At 32.5 ounces and just under 10 inches overall, it's compact enough to pack but substantial enough to shoot comfortably, making it equally at home in a truck, a range bag, or a backpack.
This is a shooter's .22, not a safe queens' collectible. The Sidekick works both single-action and double-action, so you can take your time on a target or snap off quick follow-ups. Nine-round capacity means fewer reloads, and the checkered glass-filled nylon grips won't slip in your hand whether you're shooting in gloves or barehanded. The integral rear sight and blade front sight are straightforward iron sights—no frills, no fancy optics rail, just point-and-shoot fundamentals. The 1:19 right-hand twist and six-groove barrel are standard .22 specs that'll give you the velocity the cartridge can deliver.
If you're looking for a truck gun, a training platform, or an affordable way to shoot suppressed (rimfire cans are cheap), the Sidekick checks those boxes. It's not trying to be a tactical race gun or a heirloom; it's a working revolver that does what revolvers do—point, aim, fire, repeat—without pretense or a premium price tag. Diamondback built a no-nonsense tool for hunters, casual shooters, and anyone who appreciates honest engineering over marketing noise.
| Caliber | .22 LR / .22 WMR (convertible) |
| Action | Single and Double |
| Barrel Length | 4.5 inches |
| Barrel Twist | 1:19 RH |
| Grooves | 6 |
| Cylinder Capacity | 9 rounds |
| Overall Length | 9.875 inches |
| Weight | 32.5 oz |
| Frame Material | Zinc |
| Finish | Dark Gray Cerakote |
| Grips | Checkered Glass-Filled Nylon |
| Front Sight | Blade |
| Rear Sight | Integral |
Yes. The Sidekick features a convertible cylinder design, so you can chamber either .22 Long Rifle or .22 Magnum ammunition. Just load the appropriate round for the power and velocity you need.
Absolutely. The .22 WMR capability, nine-round capacity, compact size, and reliable double-action trigger make it well-suited for hunting squirrel, rabbit, and other small game. The 4.5-inch barrel delivers appropriate velocity for each cartridge.
The revolver ships with checkered glass-filled nylon grips. These provide a secure, textured grip surface and won't deteriorate from moisture or temperature changes the way some materials do.
The Sidekick uses integral iron sights and does not feature an optics rail or mounting surface for a scope or red dot.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
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