Diamondback DB1889K001 DB15 Knight's Armament 5.56 NATO 30+1 16" Phosphate Chrome Lined Threaded Barrel, Black Anodized Picatinny Rail Aluminum Receiver, Magpul CTR Synthetic Stock, Magpul MOE K2 Grip

The Diamondback DB15 Knight's Armament 5.56 NATO rifle is a mid-length direct impingement AR-15 built for shooters who want a reliable, straightforward platform without unnecessary complexity. With a 16-inch chrome-lined phosphate barrel, forged 7075 T-6 aluminum upper and lower receivers, and a 15-inch M-Lok handguard, this rifle delivers the balance of accuracy and maneuverability that works equally well at the range, in the field, or as a patrol rifle. The A2 flash hider keeps muzzle signature down, while the phosphate chrome-lined bolt carrier group and mil-spec trigger are proven Mil-spec components that handle full-power 5.56 NATO loads without flinching.

What sets the DB15 Knight's Armament apart is its thoughtful furniture package. The Magpul MOE K2 grip provides a comfortable, ergonomic hold; the Magpul CTR stock offers a solid cheek weld and adjusts from collapsed to extended length (32 to 35.5 inches overall), letting you tune the length of pull for your body and gear. The A3 flattop receiver with full Picatinny rail gives you a clean platform for any optic you want to run, and the integrated M-Lok rail system on the handguard accepts lightweight accessories without the weight or profile of a full quad-rail design.

Out of the box, you get a loaded magazine—a 30-round Magpul Gen M2 PMAG—and Magpul flip-up front and rear sights, so you can get to work immediately. At just 6.53 pounds, it's light enough to carry all day yet solid enough to shoot accurately at distance. Whether you're a first-time AR builder looking for a complete, quality rifle or an experienced shooter wanting a backup or truck gun, the Diamondback DB15 delivers no-nonsense reliability and versatility.

Key Features

• Mid-length direct impingement gas system for reliable cycling and manageable recoil
• 16-inch chrome-lined phosphate barrel with 1:7 twist rate; threaded for suppressors or muzzle devices
• Forged 7075 T-6 aluminum upper and lower receivers with black hardcoat anodize finish
• Magpul MOE K2 grip and CTR adjustable stock for comfortable, customizable ergonomics
• 15-inch M-Lok anti-rotation V2 S-Rail handguard with full Picatinny rail on top
• Includes Magpul Gen M2 PMAG 30-round magazine and flip-up front and rear sights
• Phosphate chrome-lined M16 BCG for durability and easy maintenance
• A2 flash hider to reduce muzzle flash
• Weighs 6.53 lbs—light and handy without sacrificing stiffness

Specifications

Frequently Asked Questions

What sights come with the Diamondback DB15?

The rifle ships with Magpul flip-up front and rear sights, which allow you to zero your iron sights and use them as co-witness backups alongside an optic, or as your primary sighting system right out of the box.

Can I attach a suppressor or other muzzle device?

Yes. The barrel is threaded 1/2 x 28 and includes an A2 flash hider. You can remove the flash hider and install a suppressor, muzzle brake, or other compatible accessory.

What comes in the box?

You receive the complete rifle, a 30-round Magpul Gen M2 PMAG magazine, and the Magpul flip-up sights mounted and ready to use.

Is this rifle suitable for hunting and sport shooting?

Yes. The 5.56 NATO caliber, adjustable stock for different body types and gear, and light weight (6.53 lbs) make it versatile for range training, competitive shooting, and hunting applications where 5.56 is appropriate. The adjustable stock allows you to dial in the length of pull from 32 to 35.5 inches.