FCD - Suppressor Muzzle Device Install - 6315KM
This guide details the process of installing a suppressor-ready muzzle device on an AR-15 upper receiver, emphasizing the use of shims for proper timing and Rocksett for secure fastening. It highlights the importance of barrel thread cleanliness, careful shim selection through trial and error, and final alignment checks with a dedicated rod to prevent baffle strikes. The instruction is presented by an individual with practical experience in firearm assembly.













