This is a Model of the well known Five Seven gun, also used in the game Counter Strike.
You have to glue the bolt guide.
I hope you enjoy it.
Version 1.8 is now uploaded and tested, thanks for all your input.
I'm quiet new to Fusion360 and this is a complex modell, so I appriciate every feedback.
Thanks to Loganware for the base model https://www.thingiverse.com/thing:2837322