$15 Galil Ace Low-poly 3D model by Kaktusryak. Available on CGTrader with 12474 polys and 6805 vertices. Check it out on CGHub.
BLEND (Blender, filesize: 3.5 MB), OBJ (OBJ, filesize: 1.18 MB), FBX (Autodesk FBX, filesize: 936 KB), TEXTURES (Textures, filesize: 214 MB)