Algodoo

Improved everything

Instructions in the scene

Also, when unfixating the rifle, ease it down with the drag tool so that it doesn't slam into the ground, since that seems to mess up the forward assist, amongst other things

I also decided not to include the open able dust cover that was in the first version, since the "trick" i used to make it work looks retarded when you open the rifle

Oh, and by the way, be patient with it, sometimes it works flawlessly and sometimes it jams a few shots in a row.

You can also lock the bolt back by pulling the charging handle to the left while holding the up arrow and then pushing the charging handle to the right (since it has no spring to make it return forward by itself), you then unlock the bolt with the down arrow

I think that covers everything, enjoy

EDIT: Fixed a minor thing