Product Description The WMD Guns 9mm 16.5 inch Nitromet Barrel is a government-profile, threaded barrel built for reliable performance and long-wearing durability. Finished in black nitride, it is designed to resist wear and corrosion while maintaining a clean, low-glare appearance. With a 1:10 twist rate and 1/2x28 muzzle threads, it is a strong choice for 9mm builds that require a longer barrel length and suppressor or muzzle device compatibility. Product Highlights 16.5 inch 9mm barrel ideal for carbine-length 9mm builds and extended sight radius Black nitride (Nitromet) finish for enhanced corrosion resistance and reduced wear Government profile for a balance of strength, heat handling, and overall weight 1:10 twist rate optimized for common 9mm projectile weights 1/2x28 muzzle threads for broad compatibility with 9mm muzzle devices and suppressor mounts Specs Brand: WMD Guns MPN: 9mm16.5 1-10 UPC: 854839008825 Caliber: 9mm (9mm Luger) Barrel Length: 16.5 in Barrel Profile: Government Twist Rate: 1:10 Muzzle Thread Pitch: 1/2x28 Finish: Black nitride (Nitromet) Barrel Material Marking: 4150 CMV (as marked on barrel) Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.