$9 ColtSAA revolver Low-poly 3D model by HardProps. Available on CGTrader with 15412 polys and 8140 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 256 KB), 3DS (3D Studio, filesize: 280 KB), FBX (Autodesk FBX, filesize: 508 KB), SPP (Substance Painter, filesize: 667 MB), MAX (Autodesk 3ds Max, filesize: 597 KB), TEXTURES (Textures, filesize: 486 MB)