Diamondback Firearms expands its revolver lineup with the SDR-A and bobbed hammer SDR, bringing six-shot capacity, modern finishes, and easy maintenance.
New SDR Revolvers at SHOT Show 2026
Diamondback Firearms introduced the SDR revolver line after spotting a gap during the COVID-era surge in revolver demand. Many small-frame revolvers stayed stuck at five rounds.
Diamondback went a different direction. The SDR series uses a small-frame footprint but fits six rounds. That alone sets it apart. These revolvers also focus on ease of use, corrosion resistance, and modern carry needs.
All SDR models use a push-button cylinder release. A second button at the rear lets users remove the crane and cylinder as a unit. Cleaning becomes fast and simple. Push it back in, and you’re ready to shoot.
Fiber-optic sights come standard. The frames accept J-frame grips, which opens the door to plenty of aftermarket options. Diamondback ships them with its own boot-style Bantam grip for easy carry.
Bobbed Hammer SDR: Built for Carry
The bobbed hammer SDR targets concealed carry and snag-free draws. Diamondback offers it in multiple finishes, including glass bead stainless and black nitride.
The bobbed hammer reduces snag points without sacrificing double-action control.
Diamondback also released new three-inch versions alongside the bobbed models, giving shooters more sight radius and balance. These models ship with a slightly larger grip than the standard Bantam. They still remain J-frame compatible.
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Specifications: Bobbed Hammer SDR (.357 Magnum)
- Caliber: .357 Magnum / .38 Special +P
- Capacity: 6 rounds
- Barrel length: 2 inches
- Frame material: Stainless steel
- Finish options: Black nitride, glass bead
- Hammer: Bobbed
- Sights: Fiber optic front
- Grip: Extended boot-style grip
- Action: Double-action / single-action
- J-frame grip compatible
SDR-A: Lightweight Aluminum Option
The SDR-A adds an aluminum frame to the lineup. That drops the weight while keeping the same core features. Diamondback paired it with a stainless steel cylinder and barrel.
The SDR-A comes chambered in .38 Special +P. It aims at shooters who want lighter carry without jumping to polymer. Aluminum limits the chamber offerings, but still provides you access to a time-proven defensive round.
Specifications: SDR-A (.38 Special +P)
- Caliber: .38 Special +P
- Capacity: 6 rounds
- Barrel length: 2 inches
- Frame material: Aluminum
- Cylinder material: Stainless steel
- Finish: Glass bead
- Sights: Fiber optic front
- Grip: Diamondback Bantam
- Action: Double-action / single-action
- J-frame grip compatible
- MSRP: $614
Where the SDR Line Fits
Diamondback didn’t reinvent the revolver. The company refined it. Six-shot capacity, modern finishes, and easy maintenance give the SDR-A and bobbed hammer SDR a clear place in today’s carry market.
Learn More about the SDR product line from Diamondback Firearms here!
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