Emperor V3 / Ronin Extender 6.26″ with M18x1 #S5C. This DonnyFL extender is specifically made to extend the Emperor and Ronin silencers. The 6.26 inch long extender chamber is fitted to the rear of the silencer to make it even quieter. This increases the air volume that gets captured inside the silencer. – Matt Black Anodised – CNC-Machined Aluminum – M18x1 * Works with the latest Ronin version – with grooves in the front cap.