Nerf retaliator SMG kit

This is a retaliator smg kit, side prime, I have two side prime body ,choose the one you need, and the "short rail" you need to print three . the nuts size is M3*10 , easy to find.

The ''BASE'' size is for the WORKER short darts kit,the cheap black one,I don't have other size ,if you have trouble with the size , comment below if I have time i will change.

The main body must be 100% fill , and the muzzle and short barrel you need to prepare yourself.
The kit is fit for retaliator and W