Vibra-Tite Medium strength 121 thread locker. Made by ND Industries.
For use on the Mounting screw of your CompMag.
Locks your mounting screw to resist loosening from vibration.
Screw is still removable by hand with an allen wrench.
.068 FL OZ / 2ml
Enough for roughly 15-20 applications.
Made in the U.S.A.