Well, those are all good reasons to put the box in there... Does Systema make a M110? IIRC M120's are pretty high FPS, and it's always best for new players to start with 340ish FPS. You wont be that out-gunned, and you'll learn how to move and work for your kills... along with the fact that new players generally have pretty poor trigger control.
Gun Technician and Tuner
Well versed in every AEG version and all major gas and spring systems.