HK UMP 400-Round Hicap AEG Magazine AEG Airsoft Gun Magazines Perfect compliment to a Polarstar

Perfect compliment to a Polarstar equipped airsoft gun

Certified to exceed ANSI Z87

Use and sales to 18+ year olds only (we ID all buyers)

to add a sight if needed

You can also port it yourself

HK UMP 400-Round Hicap AEG Magazine AEG Airsoft Gun Magazines Perfect compliment to a PolarstarHK UMP 400 round Hicap AEG Magazine High capacity magazines are the favorite magazine for airsoft players. High capacity (Hicap) magazines usually hold 150 rounds or more. These magazines work using a tensioned mainspring (similar to a mechanically wound timepiece) or an electrically driven feeding gear. The advantage of these magazines is the simple fact that they are able to hold a great many BBs. Most beginner or intermediate AEGs come with a high