SR-1 Vector / Gyurza

This model has:
Pistol: 7807 tris 7807 poly (without cartridges)
One cartridge: 912 tris (912 poly)
Mesh is separated (7 Meshes): grip, slide, trigger, hammer, mag, cartridge in barrel, cartridgs in mag
The internal parts of the gun are simplified
The model is triangulated and uv unwrapped

What are you getting:
File with triangulated and uv unwrapped mesh of pistol with cartridges.
uv padding 32px, some part are overlapping on uv
WITHOUT stand and table or render scene. Only pistol model with cartridges.
No animation or rig

PBR textures PNG and TIFF 4k:
Albedo (Color) (PNG 8bit / TIFF 16bit)
Roughness (8bit / TIFF 16bit)
Metalness (8bit / TIFF 16bit)
NormalMap DirectX (16bit / TIFF 16bit)
NormalMap OpenGL (16bit / TIFF 16bit)
Ambient Occlusion (8bit / TIFF 16bit)

File format : FBX, obj, blend

You can use this model and textures in any game engine, for example, Unreal Engine, Unity, etc. Also in any rendering engine such as Cycles, V-Ray, Corona, Octane or any other.
After importing the model and the textures into the target engine you have to follow the official engine documentation on how to set the material up.