The SilencerCo AC860 is a precision-machined threaded barrel designed for the Glock 34 in 9mm. Manufactured from heat-treated 416R stainless steel and finished in black nitride, this 5.8″ barrel features a 1/2″–28 thread pattern for full compatibility with standard suppressors. It fits Glock 34 generations 1-4 (not compatible with Gen 5) and installs as a direct replacement barrel.
This barrel is finished with a 1:10″ right-hand twist rate optimized for 9mm performance and stability. Each SilencerCo AC860 ships with a thread protector to safeguard the threads during storage and transport. Built with the same quality standards applied across SilencerCo’s product line, the barrel is engineered to perform under demanding conditions. As a simple drop-in replacement, the AC860 enables suppressor use and thread-mounted accessory compatibility for sport and defensive shooting applications.
