$25 45 ACP Cartridge 3D model by Plutonius3d. Available on CGTrader with 8538 polys and 4275 vertices. Check it out on CGHub.
OBJ (OBJ, filesize: 105 KB), FBX (Autodesk FBX, filesize: 884 KB), UNITYPACKAGE (Unity 3D, filesize: 483 KB), 3DS (3D Studio, filesize: 104 KB), MAX (Autodesk 3ds Max, filesize: 459 KB)