9mm Vortex G6A3 Sound Suppressor Capable Flash Eliminator with 10° Pitch and Helical Grooves
Especially designed to make the SEI Sound Suppressor easier to remove, featuring a shallower pitch and grooves to reduce surface contact and carbon buildup. Heat treated same as all other Vortex’s. 1/2 x 28 I.D. thread.

!! DO NOT USE CRUSH WASHER !!