There are NO CONS with this mount.
Everything about is rock solid, easy to mount, easy to use. A HUGE "plus" is the iron sights co-witness beautifully.
I am extremely happy with this product.
You have a Mark II and want to mount a scope or a red dot? You cannot go wrong with this mount. Well worth the money spent. The price is right, too!
Pros: ease of everything
This review was written in the old system and had content requirements that are different than reviews written today.