Diamondback DBB 16″ 5.56 Carbine Barrel 1:9 Nitride

Diamondback Barrels supplies this DBB 16-inch barrel engineered for AR-15 platforms and chambered for .223 Rem/5.56 NATO. It features a 1:9 twist rate and a carbine-length gas system, finished in durable nitride and presented in black. The barrel is intended for standard carbine configurations where a 16″ length and carbine gas system are desired for reliable cycling and familiar handling.

Key Specifications

• The barrel measures 16 inches for typical AR-15 carbine handling.
• It is chambered for .223 Rem/5.56 NATO to match common AR-15 ammunition options.
• The twist rate is 1:9 to stabilize a wide range of bullet weights.
• The finish is Nitride for improved surface hardness and corrosion resistance.
• Designed for AR-15 fit and installation.
• Gas system is a Carbine Length Gas System for standard carbine operation.
• The product type is classified as a Barrel for rifle applications.
• The exterior color is Black to match common component finishes.

Durably finished and purpose-built for AR-15 carbine setups, this Diamondback DBB barrel offers a straightforward, no-nonsense upgrade for shooters seeking reliable performance for range work, training, and general utility use. Its combination of a 16″ length, 1:9 twist and nitride treatment provides a balance of handling, compatibility and longevity on a variety of standard AR platforms.