the cheetah 2n is HUGE compared to the nano ssr.
In case you need to see the pico being ridiculously small again... here it is in a teammate's gun.
going to try it out there for now.
Feeds fine, shoots 395.. bolt works and releases.. just have to pull it apart again cause the safety mysteriously stoppped working... but you get the idea of how small it is. If you don't have that kind of space... then you're kinda screwed. lol