This is a model of the Institute Rifle from Fallout 4. The model is split into multiple smaler parts to make printing easier, I also added some notches to simplify alignment and assembly. The Power Cell is split into to halfs and can fit a standard 9V battery (until you down-scale to lower than 80%) - for people who want to add light- and / or sound-effects.

While printing you have to decide if you want the 'simple' reciever (part 006b) or the 'advanced' reciever (part 008a+b). Part 006b has a fixed trigger, in part 008a and  008b trigger and reciever are seperated parts. Also there is a difference between part '006a 2 OPEN' and '006a 2 CLOSED' (you will only need one of this parts for assembly). The 'OPEN' part has two open areas in the body which may be covered up with clear plastic to add light-effects or you can insert the electronics to adjust / manage lightning and sound-effects there. The 'CLOSED' part simply has this holes covered.