ATI GSG Red Dot Recommendation

[TriggeredFinger]

I'm looking to upgrade my current red dot on my ATI GSG 5-22 with a standard Weaver rail. I've currently got a crappy "AIM brand" red dot, but it's just not doing the trick for me anymore.
I primarily use it for plinking and some good ole cheap range fun. My budget for the scope is up to about $100. Any recommendations??

 

[LoginName]

I have a Sight Mark Sure Shot on my GSG...

http://www.sightmark.com/products/reflex-sights/sure-shot-black-sm13003b

It's a reflex sight (not a tube style red dot), if it makes any difference to you.

Retails for $60.00

I know some will say not to invest in cheap/inexpensive optics, but keep in mind the firearm it's going on.

 

[MassMark]

https://www.primaryarms.com/Primary_Arms_s/586.htm

 

[ChevyGuy91]

https://www.primaryarms.com/Primary_Arms_s/586.htm

https://www.primaryarms.com/Primary_Arms_Micro_Dot_With_Removable_Base_p/md-06.htm

This, I have one mounted at 1 o'clock on my game rifle. I will probably but it on an ultimak rail on an AK when I figure out I am to slow to shoot open.