Description
Most small-frame .357s make you settle for five rounds. The Diamondback SDR gives you six in a package the same size as the classic snub guns everyone already carries, and this version takes it a step further with a bobbed hammer and double-action-only trigger. There is nothing to catch on a cover garment or pocket lining on the draw, which is exactly what you want in a gun that lives close to the body. The polished stainless finish looks sharp enough that people will assume you spent a lot more, and the whole thing is machined from forged stainless steel, so it is built to run hard for a long time.
Why the SDR Stands Out in the Snub Gun Crowd
Diamondback did their homework here. The double-action pull is smooth and non-stacking with a clean break, running 9 to 11.5 pounds, which is genuinely good for a factory carry revolver. Up top you get an orange fiber optic front sight paired with a green fiber optic rear dovetailed into the frame, a huge step up from the milled trench most snubbies wear. The cylinder chambers are chamfered for faster reloads, the push-button cylinder release is easy on the thumb, and a second button on the frame lets you pull the entire cylinder and crane assembly out in one piece for cleaning. There is even a 45 degree target crown protecting the rifling at the muzzle.
Carrying and Shooting the Diamondback SDR
At 21.2 ounces unloaded with a 2 inch barrel and 6.53 inch overall length, the SDR carries like a J-frame, and the grip frame accepts standard J-frame stocks if you ever want to swap out the factory Hogue rubber grip. That Hogue grip does a fine job soaking up recoil and pointing naturally, especially with .38 Special loads. Feed it standard pressure .38s at the range, load it with stout +P or full-house .357 Magnum for carry, and you have a simple, dependable six-shooter that does its job without any fuss. Each one is made in the USA and ships with a soft case and cable lock.
Key Specifications
- Manufacturer: Diamondback Firearms
- Model: SDR (Self Defense Revolver)
- Manufacturer Part Number: DB0700S702
- UPC: 810035754454
- Caliber: .357 Magnum / .38 Special +P
- Action: Double Action Only, Bobbed Hammer
- Capacity: 6 Rounds
- Barrel Length: 2"
- Overall Length: 6.53"
- Height: 4.44"
- Width: 1.38"
- Weight: 21.2 oz (Unloaded)
- Frame: Forged Stainless Steel, Polished Finish
- Sights: Fixed Orange Fiber Optic Front, Green Fiber Optic Dovetail Rear
- Grip: Hogue Black Rubber with Diamondback Logo
- Rifling Twist: 1:18.75" RH, 6 Grooves
What’s Included
- Diamondback SDR revolver
- Soft zippered pistol case
- Cable lock
- Owner's manual
Frequently Asked Questions
Can the Diamondback SDR shoot .38 Special as well as .357 Magnum?
Yes. The SDR is chambered for .357 Magnum and will also run .38 Special, including +P loads. A lot of owners practice with softer shooting standard pressure .38s and load up with +P or magnum ammo for carry, which is a smart approach with any lightweight snub gun.
What does DAO with a bobbed hammer mean on this SDR model?
This version has no exposed hammer spur, so it fires in double action only with every trigger pull. The big advantage for concealed carry is a completely snag-free draw from a pocket, waistband, or bag. Diamondback's non-stacking trigger runs 9 to 11.5 pounds with a clean break, so it stays very shootable despite the DAO setup.
Will J-frame grips and holsters fit the Diamondback SDR?
For the most part, yes. The SDR's grip frame is sized to accept standard J-frame stocks, so the aftermarket grip options are nearly endless. Its dimensions are close enough to a J-frame that many leather and nylon holsters made for five-shot snubs work well, though molded Kydex rigs are more fit-specific, so check with the holster maker.
How do you remove the cylinder on the SDR for cleaning?
There is a small button on the right side of the frame just above the trigger guard. With the cylinder swung open, pressing that button lets the entire cylinder and crane assembly slide forward and out of the frame as one unit. It makes deep cleaning the chambers and yoke far easier than on traditional revolvers that use a frame screw.





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