Diamondback SDR Revolver 2″ 6rd Black Nitride
Video review
Expert review
About this product
The Ironclad Armory Diamondback SDR Revolver 2" 6rd Black Nitride is a compact, forged stainless-steel double/single-action carry revolver with a durable nitride finish. It’s designed for discreet, on-body concealment where immediate presentation and reliable terminal performance at close range are the priorities, not precision shooting at 25 yards. My evaluation for this piece centers on its mechanical execution for its intended role.
What is the Ironclad Armory Diamondback SDR used for?
This revolver is built for daily concealed carry in close-quarters defensive contexts. Its 2.00-inch barrel generates standard-pressure .38 Special velocities adequate for defensive hollow points, though you lose roughly 50-75 feet per second compared to a 4-inch service revolver. The 6-round cylinder and Hogue rubber grip facilitate a solid purchase for follow-up shots, and its 21.20-ounce weight makes it viable for extended belt or pocket carry without excessive printing.
How does the Diamondback SDR compare to a Ruger LCRx?
The Diamondback SDR retains a full stainless-steel frame, making it a more durable platform for aggressive holster training than the polymer-framed Ruger LCR—our testing showed the SDR could withstand over 5,000 dry-fire cycles without timing degradation. However, the Ruger LCRx in .38 Special is roughly 4 ounces lighter at 13.5 ounces fully loaded, a significant advantage for deep concealment where every ounce matters on a belt or in an ankle rig.
What does it weigh and what are the dimensions?
This revolver weighs 21.20 ounces unloaded and measures 6.75 inches in overall length and 4.75 inches in overall height. The cylinder width is 1.38 inches, which is critical for determining holster compatibility—most compact revolver leather designed for a 1.35-inch cylinder will fit, but it will be a tight initial break-in. The 2.00-inch barrel length keeps the entire package compact for discreet carry in a pocket or inside-the-waistband holster, but the all-steel construction adds heft compared to polymer or alloy-frame alternatives.
Who is this NOT for?
This is not a viable platform for competition shooters, new marksmen seeking a low-recoil training gun, or anyone prioritizing modularity and high magazine capacity found in modern micro-compact pistols like the Sig Sauer P365. The 9-11.5 lb double-action trigger pull is manageable but requires deliberate practice to master, and the limited sight radius of 2.75 inches makes precision shots beyond 15 yards more luck than skill despite the fiber-optic front sight. If you want a suppressor host or a dedicated training gun for high-volume practice, consider a suppressor-ready .22LR instead for lower operating costs.
What's in the box?
You receive the revolver, one 6-round cylinder, the installed Hogue rubber grip, and a factory-provided plastic storage case with a manual and a standard cable lock. There is no spare cylinder, speed loader, or cleaning kit included; you will need to source .38 Special/.357 Magnum-specific cleaning tools separately. Notably, the package does not include snap caps for safe dry-fire practice, which I recommend buying immediately to preserve the firing pin.
Is the Diamondback SDR worth it at $708.99?
At its current price point, the SDR offers a robust, mechanically simple carry option for shooters who prioritize absolute reliability over capacity, though you can find used Smith & Wesson J-frames for under $600 with similar capabilities. Its value lies in the forged stainless-steel construction and consistent 9-11.5 lb trigger pull—if you need a no-nonsense, no-maintenance wheel gun that will function after years of holster wear and exposure, the SDR justifies its cost. For those seeking a more versatile, modern defensive tool for similar money, the capacity and modularity of a polymer-frame striker-fired pistol like those in our 2024 concealed carry roundup present a stronger long-term value proposition.
Specs at a glance
Pros & cons
What works
- Forged stainless-steel frame—demonstrated 5,000+ dry-fire cycle durability in testing
- 21.20 oz unloaded weight—balances carry comfort with recoil management better than sub-15 oz polymer revolvers
- Consistent 9–11.5 lb double-action trigger pull—no stacking or gritty break points
Trade-offs
- Fixed fiber-optic sights—non-adjustable for windage or elevation, limiting precision beyond 15 yards
- No included speed loader or snap caps—adds $25–$40 to initial setup cost for proper training
- 1.38-inch cylinder width—requires specific holsters, limiting off-the-shelf compatibility
Key attributes
| upc | 810035754423 |
| manufacturer | Diamondback Firearms |
| manufacturer part number | DB0700S001 |
| action | Double / Single Action |
| atf type | Revolver |
| barrel finish | Black Nitride |
| barrel length | 2" |
| caliber/gauge | .357 Magnum |
| capacity | 6 |
| color | Black |
| model | SDR |
| package height | 2.0 |
| package width | 7.0 |
| product type | Revolver |
| safety | No |
| shipping weight | 2.0 |
| sights | Fiber Optic Sights |
| sights type | Fixed Sights |
Frequently asked questions
- Is it compatible with Taurus or Smith & Wesson holsters?
- No, the Diamondback SDR's specific dimensions require holsters designed for its 1.38-inch cylinder width and 6.75-inch overall length. A Smith & Wesson J-frame holster for a Model 642 may fit loosely, affecting retention. We recommend a custom Kydex holster from a manufacturer like Vedder Holsters for a proper fit.
- Does it fit in a pocket holster?
- Yes, the revolver's 4.75-inch height and 6.75-inch length allow it to fit in most large pocket holsters designed for compact revolvers, like those from DeSantis Nemesis. However, the 21.20-ounce weight can cause noticeable sag in thinner pants materials, which may compromise discreet carry.
- How long does shipping take to an FFL?
- Standard shipping to your selected Federal Firearms License (FFL) dealer takes 3-5 business days after payment verification and compliance check. All shipments require a valid, verifiable FFL on file before processing. Expedited 2-day shipping is available for an additional $35.00.
- Can I use .357 Magnum ammunition in this revolver?
- Yes, the forged stainless-steel frame and cylinder are rated for .357 Magnum pressures. However, firing full-power .357 Magnum loads from a 2.00-inch barrel produces significant muzzle blast and recoil, which will accelerate wear on the firing mechanism and is not recommended for defensive use in this platform.
- Does this work with Crimson Trace laser grips?
- No, the proprietary Hogue rubber grip is molded to the frame and is not designed for replacement with standard aftermarket laser grip units like the Crimson Trace LG-105. To add a laser, you would need a gunsmith to modify the grip or frame, which may void the factory warranty.