Cheap reflex sight with factory sights?

[sonjason]

I need some expert opinion here. I bought this reflex sight on eBay:

LED 4 Reticle Red Green Dot Tactical Reflex Sight 1x22x33 Scope 20mm | eBay

For any of you with experience with these types of sights... should I mount it with the front sight on (co-witness?) or use it only for best results?

Any advice or opinion welcome.

 

[TYSTYX]

Co-witnessing requires the rear sight as well. Get a Magpul MBUS flip up sight for the rear.

 

[Jstclair360]

I have the same exact sight. It works ok. The dots aren't very crisp but at short range it's fine. I also have the magpul back up sights and have them co witness sighted in.