https://www.artstation.com/massconfusion/store/Jpk/fps-syntax-p40-model-and-textures
The first model ready for selling. More to come soon.
Up for sale on:
Unity Asset Store link -> https://goo.gl/ZjjsPP
https://www.cgtrader.com/3d-models/military/gun/fps-syntax-p40-model-and-textures