Diamondback DB15 DB195AK061 5.56/300BLK 7″/10″ SBA3 30rd
Pros & cons
What works
- Dual barrel system—switch between 5.56 NATO and 300 BLK in under 90 seconds with proper tools
- SBA3 brace extends from 23 to 28.5 inches with 5-position adjustability for different arm lengths
- Weighs 5.6 lbs unloaded—1.5 lbs lighter than a 16-inch AR-15 rifle platform
Trade-offs
- No included barrel change tools—requires armorer's wrench and vice block ($40-60 additional investment)
- 7-inch 5.56 barrel drops velocity to 2,450 fps—ineffective beyond 150 yards for fragmentation
- Milspec trigger breaks at 6.5 lbs—heavier than aftermarket options like Geissele's 3.5 lb SSA
Video review
Expert review
Specs at a glance
About this product
What is the Diamondback DB15 DB195AK061? The Diamondback DB15 DB195AK061 is a factory-configured AR-style pistol package chambered for 5.56 NATO and 300 AAC Blackout with two interchangeable barrels and SBA3 brace. This dual-caliber platform ships ready for immediate use with Magpul furniture and SB Tactical's law-enforcement-proven brace system. Federal regulations classify this configuration as a pistol, not a short-barrel rifle, which simplifies ownership but restricts shouldering without proper NFA paperwork.
What is the Diamondback DB15 used for?
This pistol serves as a compact, dual-purpose defensive and training platform optimized for suppressed use. The 7-inch 5.56 barrel produces 2,450 fps muzzle velocity with M193 ball ammunition, while the 10-inch 300 Blackout barrel stabilizes subsonic rounds at 1,050 fps—both configurations maintain reliability through the mil-spec gas system. You’ll deploy this for vehicle-based defense, rural property patrol, or as a transitional weapon between carbine and handgun training scenarios.
How does the Diamondback DB15 compare to the Stevens 334 Rifle?
The DB15 offers rapid configuration switching and higher ammunition capacity versus the bolt-action Stevens 334 Rifle. Where the Stevens 334 in .308 Win delivers superior long-range accuracy with its 20-inch barrel and 3-round internal magazine, this DB15 provides 30-round magazine capacity and semi-automatic functionality for dynamic engagements under 200 yards. Choose the Stevens 334 for precision hunting; choose this DB15 for tactical versatility and rapid follow-up shots.
What does it weigh and what are the dimensions?
The DB15 measures 23 inches collapsed and extends to 28.5 inches with the SBA3 brace fully extended. Unloaded weight sits at 5.6 pounds—lighter than most 16-inch AR-15 rifles by approximately 1.5 pounds—with center of balance shifting forward when installing the heavier 10-inch 300 Blackout barrel. These compact dimensions make it suitable for storage in vehicle consoles or tactical bags without sacrificing shootability.
Who is this NOT for?
Avoid this platform if you prioritize long-range precision or live in states restricting pistol braces. The 7-inch 5.56 barrel suffers significant velocity loss—dropping 55-grain projectiles below 2,500 fps—making it ineffective beyond 150 yards compared to our Stevens 334 Rifle with its 20-inch barrel. State-level compliance varies: California, New York, and Washington residents should verify brace legality before purchase, as recent ATF rulings create jurisdictional inconsistencies.
What's in the box?
Your shipment includes both 7-inch 5.56 NATO and 10-inch 300 Blackout barrels, each threaded and crowned with A2 flash hiders. You receive one Magpul Gen3 PMAG MCT 30-round magazine, SB Tactical SBA3 adjustable brace, Magpul MOE K2 grip, and complete upper/lower assemblies—no tools provided for barrel changes. Total package weight shipped is 11.2 pounds in a 36x12x6-inch cardboard box with foam inserts protecting both barrels separately.
Is the Diamondback DB15 worth it at $982?
At $982, this package delivers exceptional value for shooters needing two specialized barrels without custom gunsmithing. Sourcing comparable components separately—$350 for two quality barrels, $200 for the SBA3 brace, $450 for a complete pistol lower—would exceed $1,000 before assembly costs. The inclusion of Magpul furniture and proven Diamondback reliability makes this ideal for first-time NFA enthusiasts or experienced shooters expanding their compact arsenal.
Key attributes
| upc | 810035752931 |
| manufacturer | Diamondback Firearms |
| manufacturer part number | DB195AK061 |
| barrel length | 10" |
| caliber/gauge | .223 REM/5.56 NATO |
| capacity | 30 + 1 |
Frequently asked questions
- Is it compatible with standard AR-15 triggers?
- Yes, the DB15 uses mil-spec fire control group dimensions, accepting aftermarket triggers like Geissele SSA-E or LaRue MBT-2S without modification. The factory-installed single-stage trigger breaks at 6.5 pounds with minimal creep, but upgrade potential exists for competitive shooting.
- Does it fit in a standard rifle case?
- The collapsed 23-inch length fits most 26-inch tactical cases, but the 10-inch barrel protrudes 4 inches beyond a typical pistol case interior. I recommend Voodoo Tactical’s 30-inch slim case for secure transport of both barrels and accessories.
- How long does shipping take to Montana?
- Ironclad Armory processes orders within 2 business days, with FedEx Ground shipping to Bozeman taking 5-7 days. All firearms ship to your local FFL dealer, where you’ll complete a 4473 form and instant background check before taking possession.
- Can I return it if the barrel doesn't cycle properly?
- Diamondback provides a limited lifetime warranty against manufacturing defects, but returns require inspection by their Florida facility. You must initiate returns within 30 days through Ironclad Armory—expect 14-21 days for evaluation and replacement if the 1:8 twist rate causes keyholing with specific ammunition.