P90 Box Mag
By NITRO (Laylax)
This is a very unique kit for the Marui P90. Attaches as easliy as a standard mag with no modifications to your gun. Allows you to use any M4/M16 style mag.
If you want your P90 to stand out in the crowd, then hook yourself up with the NITRO Box Mag kit.
Must use M4 high capacity magazine. Will not work with mid or low-cap magazines.