One feature which stood out to me when compared to other tactical light mounts, was the means of securing the light mount’s dual thumb-nuts. Elzetta includes two (2) stainless steel cotter pins which can be utilized to secure the slotted thumb-nuts in place, preventing loosening of the mount and the possibility of the shooter loosing his weapon light. Another option for securing the dual thumb-nuts against loosening, is through the use of stainless steel safety wire. (See Figure 1)