The package contains one game-ready AKS-74U Submachine Gun, 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.
Submachine Gun is made of dark metal wood and plastic. Magazine, stock, gas port, bolt carrier, trigger etc. (see preview image) are separated from main object, so you can create animations like load and shoot. Model has dimensions similar to the real weapon.
Textures folder contains color, normal (OpenGL and DirectX), roughness and metallic but also ambient occlusion texture, so you can easily set up your material in game engine. Texture size is 4096x4096. Feel free to scale these down.
Please remember that your rendering results might differ basing on used light setup, post-processing etc.