Aside from the import issues and this being a knock-off, I have seen real EOTech optics fail due to recoil. The battery contacts will start to "miss" and it typically happens under fire (maybe not with a 15-22, and maybe not every EOTech model. It's a function of how the batteries are seated in the device, which tends to loosen up. However, with that said, I would buy once, cry once, and buy a real EOTech before I bought that Chinese made item. And with that said, I would buy Aimpoint. I have paid my share on a couple of knock-offs and every one of them ran for under a year, so now I own four Aimpoint optics (M2, ML2, and two C3s) and a Vortex Sparc.
If someone is looking for a reasonably priced optic for the 15-22, I use the Vortex Sparc on the 15-22. It's lightweight, easy to operate, looks good, and comes with a 2x magnifier (kind of narrows the eye relief, but enhances the target fine). The Vortex can be had for about $179-199 and if you can score a coupon code with SWFA, Brownells, etc. you can get a better deal. Read the Vortex Sparc torture test article -
[[Links to other forums are not allowed.]] edited phil
i do believe that i am going to have to make some room in the budget next month to pick one of those little guys up at the local Scheels--the $99 reflex on the 15-22 now will be a nice addition to the Buckmark i have been eyeballing