Check out Red Dot Sight Low-poly 3D model shop 3D model on CGTrader for $30. High-quality mesh by Elytreus: 7338 polys, 3901 vertices. PBR, Textured, UV Mapped.
BLEND (Blender, filesize: 84.6 MB), OBJ (OBJ, filesize: 84.1 MB), FBX (Autodesk FBX, filesize: 84.2 MB)