Had the chance to pick up a decent (for Gen. I) night vision scope w/full warranty for a very good price that's small enough to work w/the PS90. It's the Yukon 1.5x42 NVRS that uses AA batteries (50hr runtime & AA's are my fav power source) and has a built-in IR illuminator & remote switch. Even though it claims to be made of titanium it weighs in at 30 ounces so a PVS-14 it's not (but then, it cost less than 1/10th as much as a PVS-14). It mounted quickly/easily w/the rubber eyeshield positioned perfectly for optimal eye relief. Picture quality is good for Gen. I but like all Gen. I it has distortion around the edges. The red crosshairs reticle is adjustable for brightness and stands out very well against the green sight picture. Switches are well placed and easy to find/manipulate. The remote switch (which can be strapped/velcroed anyplace on the rifle that's convenient) controls both the reticle (on/off) & IR illuminator (on/off) w/separate buttons. The IR illuminator is *very* bright but I'll have to wait until I can hit the range at night this weekend before I can test the max effective range of both the scope & IR illuminator. So far I'm pleased with this unit, stand by for a range report this weekend...