The Minimalist Rail System is the quickest and lightest way to add picatinny rail to your Mk4 spotter. A cage system is great but the bulk is often overkill for what most people need or want. Also keep your lenses covered and protected with the included Objective and Eye piece lens cap. We can customize the 12 o'clock rail height to sit your red dot flush with the top of the spotter, just send us the height over a rail the bottom of the red dot lens sits!
