it's hard to keep track of all my parts and how they fit together. So here we have a list of 3d print parts.
Nerf Stryfe (UltraStryfe) Brushless Motor Cage & Wheels
https://www.thingiverse.com/thing:2460171
Nerf Stryfe (UltraStryfe) Max FPS Brushless Barrel
https://www.thingiverse.com/thing:2482262
Nerf Stryfe Carry Handle
https://www.thingiverse.com/thing:2403446
Nerf Stryfe 4s Battery Box
https://www.thingiverse.com/thing:2399868
Nerf Stryfe AR15 / M4 Carbine Extendable Stock
https://www.thingiverse.com/thing:2398544
Nerf Stryfe Motor Cover with Rail
https://www.thingiverse.com/thing:2398509
Nerf Stryfe Backside Rails
https://www.thingiverse.com/thing:2400033
(left_body_rail_NOT_for_my_Gun.STL)
https://youtu.be/s8ThXxCSoDE
https://youtu.be/AeTPon9P05s
https://youtu.be/l-ud31arY2M
https://youtu.be/1Zf0oN0N4_I