Meet the Diamondback SDR 3″ Revolver: A Compact .357 That Packs a Punch

Join Cody St. John for a closer look at the Diamondback Firearms SDR 3” Revolver, a compact powerhouse chambered in .357 Magnum / .38 Special +P! This stainless steel snub-nose revolver features a 3-inch barrel and a familiar J-frame grip, making it compatible with your favorite aftermarket options.

🔹 Six-shot cylinder
🔹 Compatible with K6 speed loaders
🔹 Fiber optic front sight for fast target acquisition
🔹 Push-button cylinder release and crane lock system – easy to clean and maintain

Whether you’re looking for a reliable EDC wheelgun or a sleek range toy, the SDR 3” offers performance, versatility, and style in one impressive package.

👉 Check out the video and see why this revolver is turning heads in the firearms world!

Diamondback SDR 3″ Revolver Specs:
Manufacturer Diamondback Firearms
Model SDR (Snubnose Defense Revolver)
UPC 810035754430
Manufacturer Part Number (MPN) DB0700S703
Barrel Length 3 inches
Overall Length 7.71 inches
Weight (Unloaded) 23.9 oz
Caliber .357 Magnum / .38 Special +P
Capacity 6 rounds
Frame Material Forged Stainless Steel
Frame Finish Polished Stainless Steel
Grip Type Hogue Black Monogrip (J-frame compatible)
Sights Fiber Optic Front (Orange), Fixed Rear (Green)
Action Type Double-action / Single-action
Trigger Pull 9–11.5 lbs (non-stacking)
Cylinder Release Push-button with crane lock
Shown with a J-frame grip – customize your SDR with your favorite aftermarket options
Shown with a J-frame grip – customize your SDR with your favorite aftermarket options
Built Tough, Shoots Smooth: The SDR 3’s Key Features
Whether you’re a seasoned revolver shooter or someone looking to add a reliable sidearm to your carry rotation, the Diamondback SDR 3” hits the sweet spot. It’s built tough, shoots smooth, and brings innovation to a classic platform.

It’s perfect for:

Everyday carry
Range days
Home defense
Revolver collectors
Carrying comfort meets power – the SDR 3" is compact enough for concealed carry
Carrying comfort meets power – the SDR 3″ is compact enough for concealed carry
What Caliber is the SDR 3” Revolver Chambered In?
The SDR 3″ comes in .357 Magnum, which also accepts .38 Special, making it versatile for both training and defense.

Precision machining and polished stainless finish – built tough, built to last

Is the Diamondback SDR 3” Revolver Good for Concealed Carry?
While slightly larger than a traditional snub-nose, the 3-inch barrel provides better accuracy and recoil control without being too bulky. Paired with the J-frame grip, it’s a solid choice for concealed carry, especially if you prefer revolvers.

Cylinder open and ready – the push-button release and crane lock make maintenance a breeze

The Diamondback SDR 3″ Revolver is proof that snub-nose revolvers can be both practical and innovative. With its smart design, shooter-friendly features, and classic styling, it’s ready to earn a place in your holster—or your safe.