WMD Guns 9mm 16.5" NiTroMet Barrel – AR-9 Platform

The WMD Guns 9mm NiTroMet barrel delivers reliable function for AR-9 builds with a proprietary finish that reduces friction and resists corrosion. The 16.5-inch length keeps your pistol-caliber carbine legal as a rifle while providing enough barrel length for complete powder burn and acceptable velocity from common 9mm loads. NiTroMet coating penetrates the barrel's surface at a molecular level, creating a self-lubricating surface that reduces carbon fouling and simplifies cleaning.

This barrel is designed for AR-9 platforms using Glock-style or dedicated 9mm lower receivers. Standard carbine-length gas system compatibility. Installation requires basic AR armorer tools and follows standard barrel installation procedures. The NiTroMet finish extends into the bore and chamber for consistent performance and enhanced durability compared to conventional coatings.

• Type: AR-9 Pistol Caliber Carbine Barrel
• Caliber: 9mm Luger
• Length: 16.5 inches
• Finish: NiTroMet (barrel and bore)
• Twist Rate: 1:10
• Compatible Firearms: AR-9 platforms, Glock-compatible lowers