Description
The Diamondback DB9 Gen IV 9mm 3.1in OD Green 6+1 is a micro-compact pistol built for urban carry where every ounce and inch matters. At 13.40 oz unloaded and with a 6+1 capacity, this 9mm fits deep in a pocket or IWB rig without printing.
| Manufacturer | Diamondback Firearms (per manufacturer specs) |
|---|---|
| Model | DB9 Gen IV |
| Material | OD Green polymer frame / stainless steel barrel / black nitride slide |
| Compatibility | 9mm Luger / 6+1 round flush-fit magazine |
| Finish | OD Green frame / black nitride slide finish |
| Weight | 13.40 oz unloaded |
| Condition | New (factory sealed) |
Key Features
- Serrated black nitride slide — WHY IT MATTERS: Reduces glare and corrosion while giving you positive grip when racking under stress. No slip, even with sweaty hands.
- 3.10-inch stainless steel barrel — WHY IT MATTERS: Balances accuracy for self-defense distances with a short enough profile to vanish in a front pocket holster.
- OD Green polymer frame — WHY IT MATTERS: Lightweight and tough, this frame resists impact and chemicals while the OD Green finish blends with everyday carry attire.
- 6+1 flush-fit capacity — WHY IT MATTERS: Keeps the grip short enough for discreet carry without sacrificing a full 9mm defensive round. One in the pipe, six in the mag.
- Serviceable fixed sights — WHY IT MATTERS: Low-profile and snag-free, these sights let you get on target fast without catching on clothing during the draw.
Who It’s For
Urban CCW holders who need a pistol that disappears in a pocket or ankle rig. Apartment dwellers who want a 9mm backup that doesn’t weigh down shorts or gym clothes. Shooters who prefer a simple, no-frills micro-compact with reliable controls.
Pros & Cons
- Pro: Weighs just 13.40 oz unloaded — one of the lightest 9mm micro-compacts on the market.
- Pro: OD Green frame offers a rugged, low-profile look that resists scuffs and dirt.
- Pro: Black nitride slide stands up to sweat and pocket lint better than bare stainless.
- Con: 6+1 capacity means you’ll want to carry a spare magazine for extended defensive situations.
Comparison: Diamondback DB9 Gen IV vs. Zev Technologies OZ9C vs. Agency Arms Syndicate
| Feature | Diamondback DB9 Gen IV | Zev Technologies OZ9C | Agency Arms Syndicate |
|---|---|---|---|
| Caliber | 9mm | 9mm | 9mm |
| Barrel Length | 3.10 in | 4.02 in | 4.17 in |
| Weight (unloaded) | 13.40 oz | 24.8 oz | 22.5 oz |
| Capacity | 6+1 | 15+1 | 17+1 |
| Frame Material | OD Green polymer | Black polymer | Black polymer |
| Slide Finish | Black nitride | Black DLC | Black DLC |
| Street Price | $282.94 | ~$1,800 | ~$2,500 |
The DB9 Gen IV is dramatically lighter and more affordable than both the OZ9C and Syndicate, making it a practical choice for deep-concealment carry where weight and budget are primary concerns.
FAQ
Is the Diamondback DB9 Gen IV reliable for everyday carry?
Yes, the Gen IV improves on earlier versions with a refined recoil spring and feed ramp geometry. Per Diamondback specs, the pistol is tested with 115-grain FMJ and 124-grain JHP defensive loads. Expect a break-in period of 100-200 rounds for optimal function.
What holsters fit the DB9 Gen IV in OD Green?
Most holsters designed for the standard DB9 Gen IV will fit the OD Green model, since the frame dimensions are identical. Look for pocket holsters from DeSantis or Galco, or IWB options from Alien Gear. The 3.10-inch barrel means it fits compact 9mm holster molds.
Can I use +P ammunition in the Diamondback DB9 Gen IV?
According to Diamondback, the DB9 Gen IV is rated for +P 9mm ammunition, but they recommend limiting +P use to defensive loads only. Standard-pressure 115-grain FMJ is best for range practice to extend service life.
How does the OD Green finish hold up to daily carry?
The polymer frame is color-molded, not painted, so the OD Green won’t chip or peel. The black nitride slide is a surface treatment that resists corrosion from sweat and moisture. Expect minor holster wear on the slide edges over time, but the frame color stays solid.
Trust & Delivery
- ✓ Nationwide delivery (all 50 states)
- ✓ Ships 1-2 business days from order
- ✓ 30-day returns on unopened, unfired firearms
- ✓ Secure checkout with SSL encryption
Last updated: April 2026
More than 1.2 million micro-compact 9mm pistols were sold in the U.S. in 2025 alone, with the DB9 Gen IV claiming a growing share among budget-conscious urban carriers.
Browse more: Semi Auto Handguns | Concealed Carry | 9mm Pistols

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