Check out Warhammer 40k Autopistol Reaper Low-poly 3D model on CGTrader for $2.99. High-quality mesh by ratstation: 1936 polys, 2076 vertices.
BLEND (Blender, filesize: 447 KB), OBJ (OBJ, filesize: 198 KB), FBX (Autodesk FBX, filesize: 364 KB), STL (Stereolithography, filesize: 252 KB), UNITYPACKAGE (Unity 3D, filesize: 407 KB)