Diamondback DB Barrel 7.62x39mm 7" Pistol-Length 1:9.5 Twist Black Nitride Heavy Profile

The Diamondback DB Barrel is a 7" heavy-profile replacement barrel chambered in 7.62x39mm, purpose-built for AR-15 pistol and compact rifle projects. It is machined from 4150 Chrome Moly Vanadium steel and finished in a durable black nitride coating that boosts wear and corrosion resistance while easing cleanup. The pistol-length gas system is correctly tuned for the short 7" configuration, and a 1:9.5" twist rate stabilizes a broad range of 7.62x39mm bullet weights for reliable feeding and accuracy.

Whether finishing a custom build or replacing a worn barrel, this Diamondback component delivers the strength and heat capacity serious shooters expect from a duty-grade AR-15 platform part. The heavy-profile design adds rigidity to a compact package, while the nitrided surface treatment hardens both the bore and exterior for long service life under the pressures of short-form 7.62x39 AR builds.