I don't have any issues setting up other scopes for my eyes....this is the only scope I have in this power range with Chinese glass. I'm wondering if it's a combination of my bad eyes, higher power magnification and glass that's not typically found on top tier scopes. All of my other higher power scopes only have Japanese or German glass. I have steiner, kahles, nightforce, and the ep 4 and 5 in the higher power range. I don't have problems with the sh4 16s at all (same glass lower magnification). Maybe I need to order another sh4 24. If the problem is on both of them I'll know it's my eyes and I can sell them both. Better yet I'll put it on the SCAR heavy and see how it holds up.

I own some high end scopes...Nightforce, Khales, Steiner M5xi, and I like the Arkin just as much as any of these scopes. No doubt Arkin makes a good scope. Especially for the price point. It's heavy...to me that's it's a good sign it's tough. As far as putting it on a scar....only time (and round count) will tell. If you break it... that doesn't mean its a bad scope...I'm sure Arkin will stand behind their warranty. If it doesn't break after a couple of years and a high round count...Arken probably needs to raise their price. It looks like a company team member has already given you the go ahead.

I've been seeing some guys on the web mounting Arkin on air rifles. I don't shoot air rifles but I hear they are also hard on optics due to the sharp harmonics. All of the internet air rifle crowd also seems to speak highly of the Arkin durability.

If you do it, I'd like to hear about the results. So you have something to compare it to.. My Leopold lasted about a year on the first go around and 3 trips to the range after it was repaired. Probably about 150 rounds after the repair. The viper failed first time out. Both scopes just quit tracking. The US optics on the YouTube video had the o ring at the eye piece start to come out. The problem with the scar is not the recoil...it's the enormous bolt group slamming forward after each shot. I have had no problems with either of these scopes on ar10 style rifles.

Don't do it. My scar 17 has eaten a vortex viper X 1 and a Leopold mark 4 x 2. Both companies have excellent customer service and my scopes were repaired but that gun gets an Eotech from now on. Somewhere on YouTube there is a video of a US Optics B-10 being eaten as well. The US optics and the Leopold scopes both had military contracts and the SCAR ate them. I wouldn't trust my scar with any scope.