This is why you pay attention to what you are doing.

[shooterrex (Rex)]

A customer at the gun shop I used to work I brought this in.

You need to mark those 300 black out mags and pay attention to what rifle you put them in. 300 blackout in a 5.56 DON’T WORK.

[Quick_Draw_Mcgraw]

Thats all blewed up real good

[Belt-Fed (Rick)]

Ouch! hopefully nobody got hurt.

[shooterrex (Rex)]

No one was hurt. Probably needed to change his shorts.

[Jeff300]

Whoa, good reminder in those pic’s!

[Festus (Randy)]

OUCH! Glad no one was hurt.

[Blade (blade1668)]

Dang close call there. Why my 300B.O. magazine’s are lancer / marked with lime green duct tape. Not something I want to happen.

[MusashiAharon]

Thanks for the photos! I’m glad I got clear Lancer mags for 300 BO to distinguish from my 5.56 Magpul mags.