Nerf Lever Action Rifle

I originally designed this as a modification for my Nerf Slingfire rifle, but then got carried away and created an entirely new gun that is 4 feet long! It has a working suppressor and rifling along with the same mechanism as the Nerf Slingfire rifle. I recommend using a printer with a large build plate as most parts are cut to 400mm or less.

Parts: m220, m230, m240(4), m2*25(2), and a very small spring.
Parts from the Slingfire: the mainspring, a spring from the trigger mechanism, and the metal pins from the gears.