Kaw Valley Precision 9mm 10.5" 1/2x36 AR-15 Pistol Barrel - QPQ Nitride

The Kaw Valley Precision 9mm Pistol Barrel is a precision drop-in component for AR-9 and 9mm AR-15 pistol caliber carbine builds, measuring 10.5 inches and chambered for 9mm Luger (9x19mm Parabellum). It is button rifled from 4150 CMV steel with a 1:10 twist, then finished in a QPQ salt bath nitride treatment for excellent surface hardness, corrosion resistance, and long service life.

The barrel uses a standard mil-spec barrel extension that drops directly into AR-9 upper receivers, and is crowned with an 11-degree target crown to protect the rifling and promote consistent accuracy. Muzzle threading is 1/2x36 for compatibility with 9mm-pattern muzzle devices, pistons, and thread protectors. The KVP9MMBBL10 is purpose-built for compact AR-9 pistols and PCC configurations where a light, well-balanced front end matters.

Kaw Valley Precision machines these barrels for builders and enthusiasts who want a durable, accurate replacement or build component for their 9mm AR-15 platform. Pair it with a proper 9mm bolt and barrel nut and you have a turnkey barrel assembly ready for your next build.