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When people talk about true pocket carry in 9mm, the Diamondback DB9 Gen IV comes up in the conversation every time, and for good reason. This thing is small. At just 5.73 inches long, 4 inches tall with a flush magazine, and less than 0.9 inches wide, it sits in a category where most of the competition is chambered in .380. The DB9 Gen IV gives you full 9mm performance in that same footprint, which is a meaningful advantage. Tipping the scales at 13.4 ounces empty, it carries lighter than a lot of people's wallets.
Diamondback has been building the DB9 since 2011, and the Gen IV is a genuinely improved firearm compared to those early versions. The slide now features deeper, more aggressive front and rear serrations that make press checks and slide manipulation a lot more confident. The Gen IV is also rated for +P ammunition, which opens up the full range of modern defensive loads that the original couldn't run. The all-steel captured recoil system and stainless steel barrel add durability without meaningfully adding weight. The sights are three-dot steel, Glock 42/43-compatible, which means drop-in night sights are easy to find if you want to upgrade down the road.
The striker-fired, double-action-only trigger runs around 5.5 lbs with a short reset, which keeps the system simple and consistent. There are no external safeties to disengage, just draw and shoot, which is appropriate for a dedicated carry piece. The textured polymer grip and undercut trigger guard help you get a high, firm hold on what is admittedly a short grip. A pinky extension on the included magazine helps bigger hands get a full purchase. Like any micro-compact firing 9mm, expect some snap to it, this isn't your range plinker. But for IWB carry, pocket carry, or as a backup gun, the DB9 Gen IV earns its place. Built at Diamondback's facility in Cocoa, Florida, and backed by a limited lifetime warranty.
Yes, the Gen IV is specifically rated for standard 9mm and +P loads, which is one of its key upgrades over the original DB9. This means you can run most modern hollow point defensive loads without any issues. Just stick to standard or +P pressure ratings and avoid +P+ ammunition, which exceeds SAAMI specifications and should not be used in this pistol.
Yes, and this is one of the more useful features of the Gen IV. The sights are Glock 42/43-compatible, which opens up a wide range of aftermarket steel and night sight options from brands like Trijicon, XS, and others. The factory three-dot sights are decent out of the box, but the compatibility makes upgrading straightforward if you want tritium or fiber optic options.
The DB9 Gen IV is noticeably thinner than the Glock 43, with a slide width of around 0.81 inches versus the G43's 1.02 inches. Overall length is similar, but the DB9 is lighter at 13.4 ounces versus the G43's 17.95 ounces unloaded. If absolute minimal width and weight are the priority, the DB9 has an edge for deep concealment and pocket carry.
The Gen IV added a fenced slide stop lever, which is an improvement over the original DB9 that lacked one entirely. This gives you a way to manually lock the slide back for clearing and inspection. Keep in mind that on a pistol this small, consistent last-round lockback can depend on grip and ammunition, which is common across most micro-compact platforms.
Holster availability for the DB9 has grown considerably since the platform has been around since 2011. You can find IWB, OWB, and pocket holsters from various manufacturers designed specifically for the DB9. Because the slide dimensions are similar to the Glock 43 in some respects, some G43-fit pocket holsters may also work, but always verify fit before carrying.
The DB9 Gen IV is a capable, reliable carry pistol, but it's best suited for someone who already has some handgun experience. Micro-compact 9mm pistols have more felt recoil than larger guns, and the short grip requires a deliberate hold to shoot consistently well. Someone who has spent time on a full-size or compact 9mm will adapt to it more quickly and get more out of it as a carry option.
| UPC | 810035752566 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | DB0200P001 |
| Action | |
| ATF Type | Pistol |
| Barrel Length | 3.1" |
| Caliber/Gauge | 9mm |
| Capacity | 6 + 1 |
| Color | Black |
| Length | 5.5 |
| Magazine Included | 1 x 6-Round |
| Model | |
| Number of Magazines | 1 6 rd. |
| Package Height | 1.6 |
| Package Width | 6.7 |
| Product Type | Striker Fired |
| Safety | Firing Pin |
| Shipping Weight | 1.4 |
| Sights | 3-Dot |
| Sights Type | 3-Dot |
| Slide Description | Serrated |
| Units per Box | 1 |
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