New enhanced design now supports use of SEI quick-disconnecting 0.30 cal. sound suppressor.
SPECS:FAL (Metric) Vortex®: Heat-treated 8620 steel, RC 55-60 Internal, RC 35-38 Surface
Hardness to depth .006 to .010, 9/16” X 24 TPI (Left), Phosphate Finish, Overall Length 3.175”,
Diameter .860”, Wt. .24 of a lb.