Check out AN PVS 2 Night Vision Scope With Mount Low-poly 3D model on CGTrader for $7. High-quality mesh by cgtdg: 10000 polys, 10000 vertices. PBR, Textured, UV Mapped.
OBJ (OBJ, filesize: 407 KB), TEXTURES (Textures, filesize: 38.7 MB), MAX (Autodesk 3ds Max, filesize: 838 KB), FBX (Autodesk FBX, filesize: 34.4 MB), 3DS (3D Studio, filesize: 267 KB), DXF (DXF, filesize: 650 KB), DAE (Collada, filesize: 559 KB), BLEND (Blender, filesize: 16.5 MB)