The H&K UMP Midcap Magazine by Umarex (2278058) is a 100 round midcap mag for UMP Competition airsoft guns.
Midcap magazines eliminate the winding and rattling associated with Hicap magazines. These feed smoothly and reliably and are an ideal mag to fill out a UMP compatible loadout.
Umarex H&K UMP Competiton 100 Round Micap Magazine Features:
-Replica Bullet Window
-Fits H&K UMP Comp