Diamondback Firearms DB15, 5.56 NATO, 16″ Knight’s Armament Cold Hammer Forged, 15″ M-LOK Rail, Black

Product Description

The Diamondback DB15 5.56 AR-15 rifle delivers premium performance built on a proven collaboration between Diamondback Firearms and Knight’s Armament. This semi-automatic rifle combines exceptional accuracy with reliable handling for shooters serious about quality. Furthermore, it ships ready to shoot with everything needed for immediate range use.

Knight’s Armament Premium Barrel & Rail System

The DB15 features a 16-inch Knight’s Armament cold hammer forged barrel with chrome lining. Additionally, the chrome lining extends barrel life significantly during sustained fire. The integrated 15-inch M-LOK rail system accepts any M-LOK compatible optics and accessories. Therefore, you customize this rifle exactly to your shooting preferences.

Complete Ready-to-Shoot Package

This rifle includes one 30-round magazine and backup iron sights pre-installed. Moreover, you can take it to the range immediately without additional purchases. The matte black finish resists glare and reduces reflection. Furthermore, it delivers a professional tactical appearance without compromising function.

Ideal for Sport Shooting & Tactical Training

The Diamondback DB15 performs excellently for sporting and recreational shooting applications. The 16-inch barrel balances accuracy with maneuverability in tight spaces. Additionally, MBUS sights provide reliable aiming backup if your primary optic fails. Therefore, competitive shooters and recreational users trust this platform.

Ordering from Western Sport

Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.

Frequently Asked Questions

Q: What makes the Knight’s Armament collaboration special on the Diamondback DB15?

A: Knight’s Armament engineered the cold hammer forged barrel specifically for this model. This delivers superior accuracy and extended barrel life compared to standard AR-15 barrels. The collaboration represents premium craftsmanship from two trusted manufacturers in the industry.

Q: Is the 16-inch barrel effective for home defense and sport shooting?

A: The 16-inch barrel provides excellent balance between power and handling for both applications. It maintains full 5.56 NATO velocity while remaining compact enough for indoor maneuverability. This barrel length is preferred by defensive shooters and competitors alike.

Q: Can I customize the M-LOK rail with optics and accessories?

A: Yes, the 15-inch M-LOK rail accepts any M-LOK compatible accessories and optic mounts. You can configure this rifle exactly to your shooting preferences and needs. M-LOK is the industry standard for modern tactical rifles.

Q: What is the warranty coverage for the Diamondback DB15?

A: Diamondback Firearms provides a manufacturer’s warranty covering defects in materials and workmanship. Western Sport can explain the specific warranty terms when you purchase. Your investment remains protected against manufacturing failures.

Additional information