Check out Colt m4 PBR low-poly game ready Low-poly 3D model on CGTrader for $10. High-quality mesh by cvetlanawildec: 557 polys, 607 vertices. PBR, Textured, UV Mapped.
MAX (Autodesk 3ds Max, filesize: 340 KB), OBJ (OBJ, filesize: 72.6 KB), FBX (Autodesk FBX, filesize: 294 KB), 3DS (3D Studio, filesize: 50.3 KB), LXO (Modo, filesize: 103 KB), DAE (Collada, filesize: 167 KB), TEXTURES (Textures, filesize: 5.18 MB)