I recall this being an issue with EOTech over 15+ years ago, hence the Rev F thing that was stressed big time back then for the latest firmware that resolves the battery drain. There are still people that don't do this or do the exact opposite. I have these RRA AR15 uppers made around 2004 or so where if I brought an optic over from a SCAR, Tavor, or LaRue upper, the QD mount would be totally loose and require a lot of tightening (LaRue, ADM, etc.) to get it to the right setting.īut make sure you push the sight/recoil bar forward (toward the muzzle) as you latch down the lever. The Vortex Micro 3X has the same type of system and on out of spec rails it was hard to adjust that nut because the screw would prevent a flathead from accessing the slot of the nut because of how tight it had to be. The elevation/windage is supposed to be part of the mount and not inside the device, kind of like an ELCAN. Vortex will replace your UH-1 Gen II with another that has the same defect but I have yet to find anyone with a sight made after July to see if it was truly fixed. But if you do a search outside of you'll find multiple reports of battery issues. So far I have yet to find one brand new from a reputable vendor that has this newer serial number.
Supposedly they resolved it with a software update and the ones that have the software update out of the factory were made in July 2021 and beyond with a serial number U217xxxxx. They drain batteries just sitting on a shelf, in under a month or so.