[Wesman]

I'm not sure if I would use such heat generating tape strips (if they do in fact exist) directly on the mags themselves, but I'd probably attach some around the grips of my pistol to have a continuous warming effect for any mag currently in the gun.

I'll try it out this weekend if I go to the game. Even if the heat generated isn't all that high, any temperature above outside ambient temperature would be an improvement, I suppose.