Diamondback DB9: A Comprehensive Review of the Popular Handgun

The Diamondback DB9 is a popular micro-compact 9mm pistol that is known for its small size and lightweight design. It is a double-action-only pistol that shoots the classic 9mm Luger and is a great option for those who are looking for a reliable and accurate concealed carry weapon. With an overall length of 5.73 inches, an overall height of 4.51 inches with the pinky extension base plate, and an overall width of .9 inches, the DB9 is easy to carry in a purse or pocket.

The DB9 features a 3.1-inch stainless steel barrel and a flush-fit magazine shoe, making it a great option for everyday carry. It also has a safety-enhanced striker system, a steel magazine catch, and windage-adjustable sights. The steel trigger has dual connecting bars, and the FEA designed slide and barrel resist corrosion and recoil. With a six-round capacity, the DB9 is a reliable and affordable pistol that is perfect for those who are looking for a compact and lightweight concealed carry option.

Key Takeaways

  • The Diamondback DB9 is a micro-compact 9mm pistol that is known for its small size and lightweight design.
  • It is a reliable and accurate concealed carry weapon that features a 3.1-inch stainless steel barrel and a flush-fit magazine shoe.
  • With a six-round capacity and a safety-enhanced striker system, the DB9 is a great option for those who are looking for an affordable and reliable concealed carry pistol.

Overview of the Diamondback DB9

The Diamondback DB9 is a micro-compact, 9mm pistol designed for concealed carry and personal defense. It is a lightweight and small firearm that is perfect for pocket carry. The DB9 is also an affordable option for those who want a reliable firearm without breaking the bank.


Design and Features

The Diamondback DB9 has an ergonomic polymer frame with a textured grip for enhanced control and comfort. The grip texture is aggressive, providing a secure hold on the pistol. The barrel length of the DB9 is 3.1 inches, making it ideal for concealed carry applications or target practice at close range.

The DB9 is a striker-fired pistol with a double-action trigger system. It has a six-round magazine capacity and is chambered for 9mm ammunition. The DB9 has a fixed front sight and a rear sight that is adjustable for windage and elevation. The pistol also has a loaded chamber indicator and a magazine release that is reversible for left-handed shooters.

Diamondback DB9 Gen 4 Upgrades

The Diamondback DB9 Gen 4 has several upgrades over the previous models. One of the most significant upgrades is the improved trigger system. The Gen 4 has a smoother trigger pull with a shorter reset, making it easier to shoot accurately. The Gen 4 also has an improved slide stop and a redesigned extractor for improved reliability.

Another upgrade in the Gen 4 is the grip texture. The Gen 4 has a more aggressive grip texture that provides a more secure hold on the pistol. The Gen 4 also has an improved magazine release that is easier to use.

Overall, the Diamondback DB9 is a reliable and affordable option for those who want a micro-compact 9mm pistol for concealed carry or personal defense. With its small size, lightweight design, and reliable performance, the DB9 is a popular choice among gun owners who want a firearm that is easy to carry and easy to use.


The Diamondback DB9 is a polymer-framed subcompact pistol that is chambered for a 9mm cartridge. It is known for its compact size and lightweight design, making it an ideal choice for concealed carry. In this section, we will discuss the specifications of the Diamondback DB9 in detail.

Size and Weight

The Diamondback DB9 is a small and lightweight pistol, making it easy to conceal and carry. It has a length of 5.73 inches, a width of 0.9 inches, and a height of 4 inches with a flush magazine. With an extended magazine, the height increases to 4.51 inches. The weight of the pistol, when empty and with a flush magazine, is 13.4 ounces.

Caliber and Capacity

The Diamondback DB9 is chambered for a 9mm cartridge, which is a popular choice for self-defense. The pistol has a 6-round capacity magazine, which is sufficient for most self-defense situations. The magazine is easy to load and unload, and it is compatible with Glock magazines.

Barrel and Slide Details

The Diamondback DB9 has a stainless steel barrel with a length of 3.1 inches and a twist rate of 1:10RH. The slide is made of steel and has a black oxide finish. The pistol has a 3-dot sight system, which is Glock compatible. The sight radius of the pistol is 4.51 inches, which is sufficient for accurate shooting.

Overall, the Diamondback DB9 is a reliable, lightweight, and compact pistol that is ideal for concealed carry. It has a 9mm caliber, a 6-round capacity, and a stainless steel barrel with a length of 3.1 inches. The pistol has a black oxide finish and a 3-dot sight system, making it easy to aim and shoot accurately.

Performance and Handling

Trigger Mechanism

The Diamondback DB9 features a long, heavy trigger pull that is reminiscent of a double-action revolver. While this may not be to everyone's liking, it is an intentional design choice that is intended to promote safety and prevent accidental discharges. The trigger pull is smooth and consistent, with a crisp break that allows for accurate shooting.

Recoil and Recoil System

Despite its lightweight design, the Diamondback DB9 handles recoil well. The recoil spring is well-tuned and effectively mitigates felt recoil, making the gun comfortable to shoot even with +P defensive ammunition. The beavertail and stippled grip panels provide a high, secure grip that further aids in recoil management.

Accuracy and Sights

The Diamondback DB9 is a surprisingly accurate gun, especially considering its small size. The grip is aggressively textured to provide a secure hold, and the sights are easy to acquire and align. The front sight is a fixed blade, while the rear sight is a drift-adjustable notch. This arrangement allows for quick and intuitive sight acquisition, even in stressful situations.

Overall, the Diamondback DB9 is a reliable and accurate 9mm pistol that is well-suited for concealed carry. Its lightweight design and effective recoil management make it comfortable to shoot, while its smooth trigger pull and intuitive sights allow for accurate shooting.

Concealed Carry Considerations

When considering the Diamondback DB9 as a concealed carry option, there are a few important factors to take into account. This section will cover holster options and pocket carry considerations for those looking to carry the DB9 for personal defense.

Holster Options

Choosing the right holster for your Diamondback DB9 is crucial for both comfort and safety. The most popular holster options for the DB9 include inside the waistband (IWB) and outside the waistband (OWB) holsters. Crossbreed Holsters is a reputable manufacturer that offers a variety of holster options for the DB9, including both IWB and OWB options.

When selecting a holster, it is important to consider factors such as comfort, accessibility, and retention. A holster that is comfortable to wear for extended periods of time will encourage consistent carry, while a holster that is easily accessible will allow for quick and efficient draw in a self-defense situation. Additionally, a holster with proper retention will ensure that your firearm stays secure and in place while carrying.

Pocket Carry and Deep Concealment

The Diamondback DB9's slim profile and lightweight design make it a popular choice for pocket carry and deep concealment. When carrying in a pocket, it is important to use a holster specifically designed for pocket carry to prevent the firearm from shifting or falling out. Additionally, carrying in the pocket of a jacket or coat can provide added concealment and accessibility.

For those looking for even deeper concealment, ankle carry is another option to consider. Ankle holsters are designed to be worn around the ankle and can be easily concealed by pants or long skirts. However, ankle carry may not be the most comfortable option for extended periods of time and may require additional practice to ensure efficient draw in a self-defense situation.

Overall, the Diamondback DB9 is a reliable and popular option for concealed carry. By selecting the right holster and carry option, individuals can ensure both comfort and safety while carrying the DB9 for personal defense.

Accessories and Compatibility

The Diamondback DB9 is a reliable and compact handgun that is perfect for concealed carry. While it is a great firearm on its own, there are a few accessories that can enhance its performance and functionality.

Magazines and Extensions

The DB9 comes with a 6-round magazine, but users can purchase additional magazines for added convenience. The magazines are made of durable materials and are easy to load and unload. There are also magazine extensions available that can increase the capacity of the magazine by one or two rounds.

It is important to note that the DB9 magazines are not Glock compatible, so users cannot use Glock magazines with this firearm. However, the magazines are specifically designed for the DB9 and are reliable and efficient.

Aftermarket Support

There are several aftermarket companies that offer support for the DB9. Galloway Precision, for example, offers a variety of performance parts and accessories for the DB9, including extended takedown plates, slide milling services, and tool kits.

Users can also find a variety of holsters and sights that are compatible with the DB9. The firearm features serrations on the slide for easy manipulation, and the sight radius is adequate for most shooting scenarios. However, users can opt for night sights for added visibility in low-light conditions.

The magazine release on the DB9 is easy to use and is located on the left side of the firearm. Overall, the DB9 is a reliable and efficient firearm that can benefit from a few carefully chosen accessories.

Frequently Asked Questions

What are common issues with the Diamondback DB9?

As with any firearm, users may experience occasional issues with the Diamondback DB9. Some common issues reported by users include occasional failure to feed or eject, as well as occasional light primer strikes. However, these issues are relatively rare and can often be addressed through proper maintenance and cleaning of the firearm.

What holsters are recommended for the Diamondback DB9?

The Diamondback DB9 is a popular concealed carry firearm, and there are a variety of holsters available to fit this model. Some popular holster options include the DeSantis Nemesis pocket holster, the Alien Gear Cloak Tuck 3.0 IWB holster, and the Blackhawk Serpa CQC holster.

What upgrade options are available for the Diamondback DB9?

There are a variety of upgrade options available for the Diamondback DB9, including aftermarket sights, extended magazines, and upgraded trigger components. However, it is important to note that any modifications made to the firearm may affect its reliability or safety, and should be carefully considered before installation.

How does the Diamondback DB9 Gen 5 differ from previous generations?

At this time, there is no information available on a Diamondback DB9 Gen 5 model. The most recent model available is the DB9 Gen 4, which features a number of improvements over previous generations, including enhanced ergonomics, an improved trigger, and compatibility with +P ammunition.

What are the specifications of the Diamondback DB9R rifle?

The Diamondback DB9R is a semi-automatic rifle chambered in 9mm. It features a 16-inch barrel, a 15-inch M-LOK handguard, and a 32-round magazine. The rifle also features a full-length Picatinny rail for easy customization.

What is the price range for the Diamondback DB9 Gen 4 model?

The Diamondback DB9 Gen 4 model is priced in the mid-range for compact 9mm pistols, with an MSRP of around $400. However, prices may vary depending on the specific retailer and any additional features or accessories included with the firearm.

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