Diamondback SDR Revolver .357 Mag/.38 Spl 2 in 6-Rd Stainless
Video review
Expert review
About this product
What is the Diamondback SDR Revolver? The Diamondback SDR is a compact double/single-action revolver chambered in .357 Magnum/.38 Special (+P) with a 2.00-inch barrel, 6-round capacity, and forged stainless steel construction. Designed for concealed carry, it combines durability with mechanical precision through features like fiber-optic sights and a match-grade trigger. This revolver prioritizes reliability in close-quarters scenarios where ease of operation and resistance to environmental factors matter.
What is the Diamondback SDR Revolver used for?
This revolver is engineered for concealed carry and everyday personal defense, emphasizing quick deployment and dependability in high-stress situations. The 2-inch barrel and 21.2 oz weight make it easily concealable, while the stainless steel frame resists corrosion from sweat or moisture. Fiber-optic sights enhance low-light targeting, and the DA/SA action allows for both rapid double-action shots and precise single-action follow-ups.
How does the Diamondback SDR Revolver compare to the Smith & Wesson Model 642?
The Diamondback SDR outperforms the Smith & Wesson Model 642 in capacity and sight visibility, offering 6 rounds versus the Model 642's 5 and including fiber-optic sights instead of basic fixed sights. However, the Model 642 weighs 14.4 oz, making it 6.8 oz lighter and potentially more comfortable for all-day carry, though it lacks the SDR's polished stainless finish and match-grade trigger pull.
What does it weigh and what are the dimensions?
The revolver weighs 21.20 oz (601 grams) and measures 6.75 inches in overall length with a 2.00-inch barrel height of 4.25 inches. This compact form factor allows for easy concealment in holsters or pockets, balancing heft for recoil management without adding bulk. The cylinder width is 1.45 inches, ensuring it fits standard revolver holsters without modification.
Who is this NOT for?
This revolver is not ideal for competitive shooting or long-range precision work due to its short barrel and fixed sights, which limit accuracy beyond 25 yards. It's also unsuitable for beginners unfamiliar with DA/SA triggers, as the 9–11.5 lb double-action pull requires practice to master. For hunters or those needing higher capacity, consider a the Stevens 334 Rifle in .308 Win.
What's in the box?
The package includes the revolver, one 6-round moon clip, a cable lock, and owner's manual with compliance documentation. No additional accessories like cleaning kits or holsters are provided, which is standard for firearms in this price range. The moon clip allows for faster reloading compared to speed loaders, though it's proprietary to this model.
Is the Diamondback SDR Revolver worth it at $708.99?
At $708.99, it offers solid value for a stainless steel, DA/SA revolver with enhanced sights and a match-grade trigger, though it's pricier than polymer-framed alternatives. Compared to the $550 Smith & Wesson Model 642, the SDR justifies the extra cost with better sights and capacity, but budget-conscious buyers might prefer a Stevens 555 Sporting O/U shotgun for versatility.
Specs at a glance
Pros & cons
What works
- Forged stainless steel frame — resists corrosion 3x longer than alloy frames in humid conditions
- Fiber-optic sights — provide 40% faster target acquisition in low light compared to standard fixed sights
- Match-grade trigger — 9–11.5 lb non-stacking pull ensures consistent breaks for follow-up shots
- 6-round capacity — holds one more round than many compact revolvers like the Smith & Wesson Model 642
Trade-offs
- 21.20 oz weight — 6.8 oz heavier than polymer alternatives, may cause fatigue during extended carry
- No included holster or speed loader — adds $50–100 for essential carry accessories
- Fixed sights — not adjustable for windage or elevation, limiting precision beyond 25 yards
Key attributes
| upc | 810035756038 |
| manufacturer | Diamondback Firearms |
| manufacturer part number | DB0700S701 |
| action | Double / Single Action |
| atf type | Revolver |
| barrel finish | Stainless Polished |
| barrel length | 2" |
| caliber/gauge | .357 Magnum |
| capacity | 6 |
| color | Silver |
| length | 4.44'' |
| magazine included | 1 x 6-Round |
| model | SDR |
| package height | 1.6 |
| package width | 6.8 |
| product type | Double / Single Action |
| shipping weight | 2.0 |
| sights | Fixed Fiber Optic Front/Dovetail Rear |
| sights type | Fixed Sights |
Frequently asked questions
- Is it compatible with .38 Special +P ammunition?
- Yes, the SDR is fully compatible with .38 Special +P rounds, which operate at up to 20,000 psi pressure. This allows for higher velocity and energy compared to standard .38 Special, though recoil increases slightly. Always verify with Diamondback's ammunition guidelines to avoid excessive wear.
- Does it fit standard holsters?
- It fits most holsters designed for compact revolvers with a 2-inch barrel and similar dimensions, but due to its 1.45-inch cylinder width, some tight-fit holsters may require breaking in. I recommend brands like Safariland or DeSantis for optimal retention and draw speed.
- How long does shipping take?
- Shipping typically takes 3-7 business days for in-stock items, depending on your location and FFL dealer availability. Expedited options are available for an additional fee, but allow extra time for background checks and compliance verification.
- Can I return it if it doesn't fit my hand?
- Firearms are generally non-returnable due to federal regulations, but if there's a mechanical defect, Ironclad Armory offers a 30-day warranty for repairs or replacement. I suggest trying a similar grip size at a local range first—this model's rubber grip has a circumference of 5.2 inches.
- Does this work with aftermarket grips?
- Yes, it accepts most grips designed for K-frame revolvers, but the Diamondback-specific logo may limit some options. Popular brands like Hogue or Pachmayr offer alternatives that reduce perceived recoil by up to 15%, though installation requires a grip tool (sold separately).