Ronin Edition RA9SD-K

The Ronin Edition RA9SD-K from Ronin Arms is a compact, integrally suppressed AR9 platform designed for precision, quiet operation, and versatility. Built with a 5.75″ ported barrel and an 8″ Defcon4 SD suppressor, this firearm delivers subsonic velocity with standard 115gr 9mm ammo—no specialty rounds required.

Each unit is hand-fitted by a single Ronin gunsmith and optimized for reliability, reduced recoil, and fast follow-up shots. Prefer a full-size build? Explore the RA9 SD Full Build or configure your own with the Defcon4 SD Conversion.