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When your carry gun is as compact as the DB9 Gen 4, every component matters a little more than usual. The DB9 is one of the slimmest single-stack 9mms on the market, and a magazine that doesn't feed reliably or seat properly isn't something you want to find out about at the wrong moment. This is Diamondback's own factory magazine for the Gen 4, made to the same specs as the one that shipped with the pistol.
The body is steel with a wear-resistant finish, and the internals include a high-tensile steel spring paired with a high-visibility polymer follower. That combination keeps cartridge alignment consistent and feeding smooth, whether you're at the range or this thing has been sitting loaded in a holster for weeks. Numbered witness holes run along both sides of the body so you can check your round count at a glance without having to drop the mag.
The finger extension baseplate is the detail that makes this version worth grabbing over the flush-fit model. On a pistol this small, even a little extra grip real estate makes a real difference in control and comfort, especially for anyone with medium to large hands. The extension is also removable, so if you ever want to run it flush for a specific holster or carry setup, that option is there.
One thing worth knowing before you order: this magazine is designed for the DB9 Gen 4 specifically. It is not compatible with the DB9FS full-size model, so make sure you have the right generation before checking out. If you own a Gen 4, this is the correct factory mag, and picking up a spare is always a smart move for any carry pistol.
This magazine is specifically designed for the DB9 Gen 4 platform. Diamondback updated the baseplate design with the Gen 4, so while some earlier generation DB9 magazines may share similarities, this Gen 4 version is verified to fit Gen 4 models. If you have an earlier generation DB9, it's worth confirming compatibility directly with Diamondback before ordering.
No. The DB9FS is a full-size variant of the DB9 lineup and uses a different magazine. This magazine is intended for the compact DB9 Gen 4 only. Double-check your model before purchasing to make sure you get the right fit.
Yes, the finger extension baseplate is removable. This gives you some flexibility depending on your holster or carry preference. Just keep in mind there is also a separate flat-bottom DB9 Gen 4 magazine available if you know you'll always want a flush fit.
This is a genuine OEM magazine made by Diamondback Firearms, built to the same specifications and materials as the magazine that came with the pistol. For a carry gun, sticking with factory mags is always a solid call since you know they'll seat and feed correctly.
The magazine body features numbered witness holes on both sides, so you can get a quick round count at a glance. It's a small but genuinely useful feature on a carry mag where you want fast situational awareness.
| UPC | 815875012344 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | DB9-MAGG4E |
| Brand Fit | Diamondback |
| Caliber/Gauge | 9mm |
| Capacity | 6 |
| Color | Black |
| Model | |
| Model Fit | DB9G4 |
| Product Type | Magazine |
| Quantity | 1 |
| Shipping Weight | 0.113 |
| Style | Detachable w/Finger Extension |
| Units per Box | 1 |
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