Quote Originally Posted by Hammer_Man View Post
Call me paranoid, but I don't trust plastic mags all that much. GI mags with anti tilt followers are reliable, and don't chip or crack when they hit the ground.
They do dent and bend. No mag is 100%
I run pmags and usgi no preference for either as both work well, take abuse, and reach and end if usefull life (found end to usgi, still waiting for pmags to fail, but less rounds on them).

OP, rip off tab and mark as training mag- worst case you get some unexpected clearance drills.