I am selling my sotac perst 4. Has a powerful green vis laser with several settings. The IR laser works well too. Asking 200 for it. A battery charger is included as well. This unit is a tank. Full aluminum housing body. Comes with pressure switch. I did run this through my brothers nods and the IR laser is very visible. Its not potted but holds up well on my 300blkout. Has all the Zentico markings. SOTAC makes very well made clones. Contact me at 830-262-1689. Will meet on 410 and bandera.