Ump556

Beware the thing nobody knew he didnt need! The thing noone asked for, the thing that makes a classic cursed, the ump45 m4 mag adapter!

I wanted my ust45 (https://www.begadi.com/s-t-ust-45-upgrade-s-aeg-mit-fsws-begadi-core-efcs-mosfet-mamba-motor-pro-hopup-nylon-fiber-version-frei-ab-18-j.html)  thats is incredibly responsive thanks to Begadi to have a bit more capacity, but i didnt want to have a drum mag, so i made this! I dont have a mag from every brand so i cant make sure every single mag will fit perfectly but i tested the adapter with the ones i have and they all work nicely.

the assembly is very simpe and requires only a small rubberband, a knife, lighter a bit of filament and maybe a hammer (not necessarily needed)…

Assembly video: https://www.reddit.com/user/N0Rand0mNam3/comments/1mfat53/assembly_video_for_my_ump45_to_m4_mag_adapter/