Diamondback DB9R: Optic-Ready 9mm Semi-Auto Rifle, M-LOK, 33-Rd
The Diamondback DB9R: Optic-Ready 9mm Semi-Auto Rifle, M-LOK, 33-Rd is a 9mm ar style rifles from Diamondback Firearms. It is available from 2 vendors at $934 to $971.99.

Product Information
Name: Diamondback DB9R: Optic-Ready 9mm Semi-Auto Rifle, M-LOK, 33-Rd
Brand: Diamondback Firearms
Category: AR Style Rifles
Caliber: 9mm
Barrel Length: 16"
Capacity: 32 rounds
UPC: 810035752726
SKU: UCEGBnSzu
Description
The Diamondback DB9R is a semi-automatic rifle chambered in 9mm Luger with an AR-style layout. It holds 32+1 rounds, weighs 6.82 lbs, and has a 16-inch barrel with a black nitride finish. Overall length adjusts from 32" to 35.25".
Key Specifications
- Model: DB9R
- Caliber: 9mm Luger
- Action: Semi-Auto
- Barrel Length: 16 inches
- Capacity: 32+1 rounds
- Weight: 6.82 lbs
- Overall Length: Adjustable from 32" to 35.25"
- Safety Type: Manual Thumb Safety
- Stock Description: Adjustable Magpul MOE Carbine
- Finish Color: Black
- Sights: Optic Ready with no iron sights included
Detailed Features
The Magpul MOE carbine stock is adjustable for length of pull. No iron sights are included; the rifle ships optic-ready. The receiver is 7075-T6 aluminum, and the barrel has a black nitride finish for corrosion resistance. The 32+1 capacity means less time reloading at the range.
Target Audience
The DB9R is built for right-handed shooters and fits sport shooting, home defense, and tactical training. M-LOK handguard slots let you add lights, grips, or other accessories without much fuss.
Usage Scenarios
- Home Defense: The 32+1 capacity gives you a lot of rounds on tap.
- Sport Shooting: At 6.82 lbs it handles well through longer range sessions.
- Tactical Training: The 7075-T6 construction holds up through repetitive drills.
Complete Specifications
| Caliber | 9mm |
| Model | DB9R |
| Capacity | 32 rounds |
| Magazines included | 1 |
| Barrel length | 16" |
| Overall length | 35.25" |
| Weight | 109.12 oz |
| Action | Semi Auto |
| Finish | Black Nitride |
| Color | Black |
| Stock material | Synthetic |
| Sights | None, Optic Ready |
| Safety | Manual Thumb |
Frequently Asked Questions
What caliber is the DB9R?
The DB9R is chambered in 9mm Luger.
Who makes the DB9R?
The DB9R is made by Diamondback Firearms.
What type of firearm is the DB9R?
It is a semi-automatic AR-style rifle chambered in 9mm.
What is the barrel length of the DB9R?
The DB9R has a 16-inch barrel.
How many rounds does the DB9R hold?
It has a 32+1 capacity.
Is the DB9R optic-ready?
Yes. It ships optic-ready with no iron sights included.
Where can I buy the DB9R?
Compare current vendor offers on this page.
Customers Say
AI-generated insights derived from customer reviews and discussions on popular gun-enthusiast forums.
The DB9R draws fairly consistent feedback across users.
On the positive side, the compact, lightweight build gets regular praise for ease of handling. The optic-ready setup is well-liked since it makes swapping or adding optics straightforward. The 33-round capacity is a clear selling point for extended range sessions. Shooters also appreciate M-LOK compatibility for mounting lights, grips, or bipods.
On the negative side, some users report reliability issues during break-in or with particular ammo — failures to feed and eject are the most common complaints. Grip ergonomics come up occasionally, especially during rapid fire. The trigger gets mixed marks; some describe the pull as heavier or less smooth than comparable rifles. Aftermarket parts availability is thinner than with more established platforms, which limits customization down the road.
Overall the DB9R tends to appeal to shooters who want a 9mm carbine at a reasonable price and are willing to work through a break-in period.
Where to Buy - 2 Offers Available
Price Range: $934 - $971.99
| Vendor | Price | Condition | Link |
|---|---|---|---|
| Kygunco Com | $934 | New | Buy Now |
| Guns Com | $971.99 | New | Buy Now |




















