The Diamondback Sidekick is a DA/SA revolver that ships with two cylinders, one for .22 LR and one for .22 Magnum, allowing the shooter to swap between calibers. The 5.5-inch barrel, 9-round cylinder, and 2 lbs (32.5 oz) weight make it a mid-size rimfire revolver. The frame is zinc alloy with a Black Cerakote finish, and the grips are black checkered GFN. 
 

Key Specifications 

• Manufacturer: Diamondback Firearms 
• Model Name: Sidekick 
• Action: Double / Single Action (DA/SA) 
• Caliber: .22 LR & .22 MAG 
• Barrel Length: 5.5 inches 
• Capacity: 9 rounds 
• Weight: 2 lbs (32.5 oz) 
• Finish: Black Cerakote 
• Frame Material: Zinc Alloy 
• Grip Type: Black Checkered GFN 
• Sights: Blade Front / Integral Rear 
   

Detailed Features 

 
The dual-cylinder design is the defining feature. Swapping between .22 LR and .22 WMR requires changing cylinders rather than the entire gun. The 5.5-inch barrel gives the .22 LR useful velocity for both range plinking and small game. The Cerakote coating on the zinc alloy frame adds wear and corrosion resistance. 
 
Blade front and integral rear sights are fixed. The DA/SA action gives the shooter the option of a longer double-action pull or a lighter cocked single-action pull for precision shots. 
 

Usage Scenarios 

 
Plinking and casual range use are the primary applications given the .22 LR cylinder. Swapping to .22 WMR makes the Sidekick suitable for small game hunting where a bit more energy matters. The low recoil of both calibers also suits new shooters learning revolver fundamentals.

The Sidekick's dual-caliber capability is the main draw and most owners find it works as described, with the cylinder swap being straightforward.

Affordable pricing gets consistent positive mentions, particularly for buyers who want both .22 LR and .22 WMR capability without buying two guns. The DA/SA action is seen as intuitive, and the zinc alloy frame feels more substantial than buyers sometimes expect at this price.

The trigger pull is the most common complaint, with many users describing it as heavy or gritty in double-action mode, which affects accuracy. Weight distribution and overall balance get some criticism from shooters comparing it to steel-framed revolvers. Sight quality comes up as a secondary concern; the fixed blade front and integral rear are functional but limited.

A small number of users report sporadic reliability issues when switching between calibers or with certain ammunition brands. These appear to be individual variation rather than a systemic problem, but worth confirming the gun cycles cleanly before field use.