Diamondback DB9: 9mm Semi-Auto Rifle, 16" Barrel, 32rd Mag
The Diamondback DB9: 9mm Semi-Auto Rifle, 16" Barrel, 32rd Mag is a 9mm semi-automatic rifles from Diamondback Firearms. It is available from 1 vendor at $840.

Product Information
Name: Diamondback DB9: 9mm Semi-Auto Rifle, 16" Barrel, 32rd Mag
Brand: Diamondback Firearms
Category: Semi-Automatic Rifles
Caliber: 9mm
Barrel Length: 16"
Capacity: 32 rounds
UPC: 810035755734
SKU: UCEGBnTmQ
Description
The Diamondback DB9 is a 9mm Luger semi-automatic rifle with a 16-inch Chromoly steel barrel, 7075-T6 aluminum receiver, and an adjustable Magpul CTR stock. The 32+1 capacity and pistol-caliber format make it a practical choice for range use or home defense at typical indoor distances.
Key Specifications
- Action: Semi-Auto
- Caliber: 9mm Luger
- Barrel Length: 16"
- Capacity: 32+1 rounds
- Safety: Manual Thumb Safety
- Overall Length (OAL): Adjustable from 32.75" to 36"
- Weight: 6.80 lbs
- Stock Description: Adjustable Magpul CTR Stock
- Sights: Optic Ready
- Material - Receiver: 7075-T6 Aluminum
- Muzzle Device: Flash Hider
- Barrel Twist Rate: 1:9.50"
Detailed Features
The Chromoly barrel with a 1:9.50" twist handles standard 9mm loads well. The Magpul CTR stock adjusts across a 3.25-inch range for length of pull. Optic-ready flat top allows mounting any standard Picatinny optic. The flash hider reduces visible signature in low-light. Manual thumb safety is on the left side, standard AR placement.
Complete Specifications
| Caliber | 9mm |
| Model | DB9 |
| Capacity | 32 rounds |
| Magazines included | 0 |
| Barrel length | 16" |
| Overall length | 36" |
| Weight | 108.8 oz |
| Action | Semi Auto |
| Finish | Black Nitride |
| Color | Bronze |
| Stock material | Synthetic |
| Sights | Optic Ready |
| Safety | Manual Thumb |
Frequently Asked Questions
What caliber is the Diamondback DB9?
The DB9 is chambered in 9mm Luger.
What is the barrel length of the Diamondback DB9?
It has a 16-inch Chromoly steel barrel.
How many rounds does the Diamondback DB9 hold?
It has a 32+1 capacity.
What type of firearm is the Diamondback DB9?
It is a semi-automatic rifle in a pistol-caliber format.
Is the Diamondback DB9 optic-ready?
Yes, the flat-top upper is optic-ready and accepts any standard Picatinny mount.
What stock does the Diamondback DB9 come with?
It comes with an adjustable Magpul CTR stock that adjusts over a 3.25-inch range for length of pull.
Where can I buy the Diamondback DB9?
Compare current vendor offers on this page.
Customers Say
AI-generated insights derived from customer reviews and discussions on popular gun-enthusiast forums.
The DB9 gets attention primarily as an affordable entry into pistol-caliber carbines with a 32-round magazine -- both of those features come up consistently in positive feedback. The compact size and manageable 9mm recoil make it accessible to newer shooters, and the Magpul stock adds some legitimacy to the overall package.
The more critical feedback covers reliability: some owners report feed and eject failures, particularly with certain ammo types. Build quality gets mixed marks -- adequate for the price point, but owners who have handled higher-end PCCs notice the difference. The lightweight design amplifies felt recoil compared to heavier 9mm rifles. Aftermarket accessories are more limited than for established brands, which matters to shooters who want to customize.
Where to Buy - 1 Offers Available
Price Range: $840 - $840
| Vendor | Price | Condition | Link |
|---|---|---|---|
| Grabagun Com | $840 | New | Buy Now |






















