A quick look at the Novus Precision Optic Prism Dot Sight made by MOS Manufacture which is the company behind Arcturus Airsoft. The PDS-1 is a replica of the real-world 1P87/PK120 "Waldaj" prismatic sight, used on various Russian firearms in the "Ratnik" program. Unlike a red dot sight, the PDS-1 offers exceptional clarity and a red dot reticle with multiple brightness levels (including night vision compatible options) thanks to its prismatic design. Built tough with aluminum housing and a long battery life, the PDS-1 faithfully reproduces the original sight's markings and functionality, making a good choice for airsoft enthusiasts seeking a realistic replica of the Waldaj prismatic sight.