The new PS28 gives your daytime scope Night Vision capability in a matter of seconds. The ATN PS-28 mounts in front of a day time scope to enable night time operation. No shift of impact, no need to re-zero, AND no change of eye relief occurs. The ATN PS-28 uses image intensifier tube technology for outstanding resolution and performance. It is waterproof, resistant to severe conditions, lightweight, and comes with quick release mount.