Not all replica EOTech's suck. Hurricane ones are the best clone version out their, but the price reflects it. Their not as expensive as a real EOTech but their still pretty expensive. Ive seen a lot of the cheap clone red dot ones that have no adjustment in brightness or aiming and those are the worst. Personally i would only ever buy a Hurricane one. Their are peices of lexan that clip onto the sight to prevent it from shattering.