Package contains one game-ready Benelli M4 Shotgun which is saved in three formats. First one is standard FBX file, second OBJ and third is Unity package so you can simply import it into game engine. Preview images were rendered in setup imitating game engine, so results are quite similar to those which you may achieve in game.
Shotgun is made of dark green metal and plastic. Safety button, trigger, stock, shell release lever etc. (see preview image) are separated from main object so you can create animation for those like load and shoot. There is also one 12 guage cardridge (multiplied to fill cardridge holder) in that can be removed or multiplied to fit your scene. Model has dimensions similar to real weapon.
Textures folder contains color, normal, roughness and metallicness but also ambient occlusion texture so you can easly set up your material in game engine. Texture size is 4096x4096. Feel free to scale these down.