Description
The Diamondback DB15 300 BLK 16 Black is a semi-auto rifle from Diamondback Firearms chambered in 300 Blackout with a 16 inch barrel and a black hardcoat anodize finish. It holds 30+1 rounds. This listing is UPC 810035756434, Diamondback Firearms part number DB1718B002.

Diamondback DB15 300 BLK 16 Black Overview
The DB15 is a Diamondback semi-auto rifle that fires one round per trigger press and cycles itself for fast follow up shots.
Action and Controls
The DB15 is a semi-auto rifle. It holds 30+1 rounds using magpul gen M3 PMAG. The trigger is Mil-Spec. The safety is thumb.

Barrel
The 16 inch barrel is chrome moly vanadium with a threaded profile and a 1:8″ twist.
Stock and Fit
The stock is synthetic with a black finish. Check the length of pull against your own fit, especially if you shoot in heavy clothing. Metal surfaces wear Black Hardcoat Anodize and Black Nitride.
Size and Handling
Overall length is 32.75″- 36″. It weighs about 6.70 lbs. A steady rest, a good sling and practice from field positions will help you shoot it well.
Ammo and Practice
Try a few brands and bullet weights to see what groups best in this rifle, then buy enough of that load to practice and hunt with the same ammo.
The 300 Blackout
The 300 Blackout fits standard AR magazines and runs well with both supersonic and subsonic loads, which makes it popular for suppressed shooting.
Target Shooting and More
This rifle is a good fit for target shooting, training and, where legal, home defense or hunting. Add a quality optic or red dot and a sling, and confirm your zero.
Optics and Accessories
Plan on quality scope rings or mounts, a sling, a hard or soft case and a cleaning kit. A bipod or shooting sticks help a lot for steady shots in the field or at the bench.
Buying Tips
Budget for quality optics or sights, a sling and ammo, and confirm your zero at the distances you expect to shoot.
Care and Value
Clean the bore and action after each range trip or hunt, keep moving parts lightly oiled and wipe the finish after handling. A well kept Diamondback holds its value.
State Laws
Some states limit semi-auto features, magazine capacity and hunting calibers. Check your local law before you buy. Pennsylvania buyers can transfer at our Collegeville shop or at any FFL.
Ordering and Transfer
When you order a firearm from MAG5 Firearms, we ship it to the licensed dealer you choose. Your dealer completes the ATF Form 4473 and the background check, and may charge a transfer fee. Local buyers can complete the transfer at our shop. Bring a valid ID, and check your state waiting period before you plan a hunt or a range trip.
Safe Storage
Store the firearm unloaded in a locked safe or case, with ammunition kept separately. A cable lock or trigger lock is a good backup, especially in a home with children or visitors. Keep the original box and paperwork, and record the serial number in a safe place in case the gun is ever lost or stolen.
Specifications
- Manufacturer: Diamondback Firearms
- Model: DB15
- UPC: 810035756434
- Manufacturer Part Number: DB1718B002
- Model: DB15
- Caliber: 300 Blackout
- Barrel Length Range: 16″ to 16.99″
- Operating System: Direct Impingement
- Stock Finish Group: Black
- Capacity: 30+1
- Stock Material: Synthetic
- Action: Semi-Auto
- OAL: 32.75″- 36″
- Sights: None
- Barrel Finish: Black Nitride
- Barrel Material: Chrome Moly Vanadium
- Muzzle: A2 Flash Hider
- Twist: 1:8″
- Receiver Description: Picatinny Rail
- Magazine Type: Magpul Gen M3 PMAG
- Grips: Magpul MOE
- Handguards: M-LOK
- Height: 7.5″
- Receiver Material: Aluminum/Carbon
- Safety: Thumb
- Thread Pattern: 5/8″x24
- Barrel Description: Threaded
- Barrel Length: 16″
Before You Buy
Federal law requires this firearm to ship to a licensed FFL dealer for transfer with a background check. Buyers must be 18 or older. Photos may show a similar model; check the specifications for exact details.
Who It Is For
The Diamondback DB15 300 BLK 16 Black is a great fit for shooters who want a dependable semi-auto rifle for the range, home defense or hunting where legal.
Buy the Diamondback DB15 300 BLK 16 Black at MAG5 Firearms
MAG5 Firearms is a family-owned FFL in Collegeville, Pennsylvania. Order the Diamondback DB15 300 BLK 16 Black online and ship it to your local FFL dealer, or browse our full selection of firearms for more rifles. For factory details, visit Diamondback Firearms.







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