Double Eagle UMP M89 Magazine (300 Rounds)

This is a spare magazine for the M89 Series UMP SMG, by Double Eagle.

Any airsoft SMG user knows how much fun can be had with an SMG. The last thing you want to do is reload your mags in-game, when you could be taking out the enemy.

Stock up on spare M89 Series UMP SMG mags before you get caught out.