The ATN PS28 will give a daytime tactical scope or spotting scope night vision capability in a matter of seconds. The PS28 Night Vision Front Sight mounts directly in front of a daytime scope quickly and securely without tools, making it night vision operational. With the daytime scope already zeroed, the PS28 requires no further zeroing and allows full use of all the features of the daytime scope. The PS28 day/night system is available in a variety of configurations, including ATN's WPT, CGT, and 3rd gen.