Description
Diamondback made its name building ARs, so when the SDR (Self Defense Revolver) showed up, plenty of folks raised an eyebrow. Then they shot it. This is a fully sorted six-shot .357 Magnum that competes head to head with wheelguns from makers who have been at it for a century, and it holds its own. The frame, cylinder, and 2 inch barrel are all stainless steel with a clean glass bead finish, and the whole gun has rounded, melted edges with concealed hardware so nothing catches on a cover garment during the draw.
Why the SDR Stands Out in a Crowded Snub Field
Most compact .357s in this size class give you five rounds. The SDR gives you six while keeping the cylinder width to 1.38 inches and total weight to 21.2 ounces. The double action trigger is the part people talk about most, with a smooth, non-stacking pull in the 9 to 11.5 pound range and a clean break, and the exposed hammer lets you cock it for deliberate single action shots. Up top you get a fixed orange fiber optic front sight paired with a low profile green fiber optic rear dovetailed into the frame, which is a serious upgrade over the gutter sights most snub revolvers ship with. A push button cylinder release sits right where your thumb wants it, and the same button lets you pull the entire cylinder and crane assembly off the frame for easy cleaning.
Feeding and Carrying the Diamondback SDR
The SDR is chambered for .357 Magnum and happily runs .38 Special including +P loads, so you can train with soft-shooting .38s and load up as stout as you like for carry. The factory Hogue rubber grip tames recoil and points naturally, and the grip frame accepts standard J-frame stocks if you want to swap. A full underlug protects the ejector rod and a 45 degree target crown guards the rifling at the muzzle. At 6.53 inches long, it rides comfortably in most common snub holsters, making it a natural pick for everyday carry or a nightstand.
Key Specifications
- Manufacturer: Diamondback Firearms
- Model: SDR (Self Defense Revolver)
- Manufacturer Part Number: DB0700S711
- UPC: 810035754317
- Caliber: .357 Magnum / .38 Special +P
- Action: Double Action / Single Action
- Capacity: 6 rounds
- Barrel Length: 2 inches
- Overall Length: 6.53 inches
- Height: 4.44 inches
- Cylinder Width: 1.38 inches
- Weight (Unloaded): 21.2 oz
- Finish: Glass bead stainless steel
- Frame Material: Forged stainless steel
- Sights: Fixed orange fiber optic front, low profile green fiber optic rear
- Grips: Black Hogue rubber with Diamondback logo
What’s Included
- Diamondback SDR revolver
- Factory-installed Hogue rubber grip
- Owner's manual
Frequently Asked Questions
Can the Diamondback SDR shoot .38 Special ammo?
Yes. The SDR is chambered in .357 Magnum and is fully rated for .38 Special, including +P loads. A lot of owners practice with milder .38s to keep range sessions comfortable, then carry hotter .38 +P or .357 Magnum defensive loads.
How does the trigger feel on the SDR?
The double action pull runs between 9 and 11.5 pounds, but it is remarkably smooth with no stacking as you press through, and reviewers consistently rank it among the best factory triggers in the snub revolver class. Since it has an exposed hammer, you can also thumb it back for a light single action break when taking careful shots.
Can I swap the grips on the Diamondback SDR?
You can. The SDR grip frame accepts standard J-frame style stocks, so the huge aftermarket of grips built for that pattern will fit. Out of the box it wears a black Hogue rubber grip that does a good job soaking up magnum recoil.
What makes the SDR easy to clean compared to other revolvers?
The entire cylinder and crane assembly comes off the frame with the press of a button, no tools needed. That gives you full access to scrub the chambers and the frame window, which is a big convenience after a range day of magnum loads. The chambers are also chamfered for smoother loading and ejection.





Reviews
There are no reviews yet.