Guntec USA AR9 Barrel 9mm 5.5 Inch Nitride Steel AR-9 Compatible

The Guntec USA GUNTEC AR9 BARREL 9MM 5.5" delivers precision for AR-9 builds with a 9mm Luger chamber and a compact 5.5-inch length that keeps your firearm agile for close-quarters accuracy and varmint hunting alike, all crafted from durable 4150 chrome moly vanadium steel and finished in a hard-wearing black nitride coating. With a straight profile and a 1:10 twist, this barrel preserves reliable projectile stabilization and consistent velocity, while weighing just 9.6 oz to minimize extra bulk without sacrificing strength. The threaded design ensures straightforward installation on compatible AR-9 platforms, and the nitride finish enhances corrosion resistance and ease of maintenance in challenging environments. Made in the USA, this steel barrel integrates seamlessly with AR-9 configurations for enthusiasts seeking a rugged, performance-driven upgrade or a dependable replacement part. Its compact 5.50-inch length makes it ideal for handgun caliber rifles, allowing rapid follow-up shots and steady handling in dynamic settings. Whether enhancing a compact build for competition, home defense, or field use, this 9mm 5.5" barrel from Guntec USA combines robust metallurgy, precise machining, and practical features to support accurate, repeatable shooting with AR-9 rifles.