I purchased these riser blocks as my red dot sight was blocked by the front sight on my AR. I bought these risers just to get the dot above the sights. Little did I know that these blocks perfectly co-witnessed my $30 sight with my irons. These are the cheapest way to elevate a sight and with all the rounds through my rifle they have never even wiggled. Top notch!
Pros: Elevated sight to co-witness with cheap red dot
This review was written in the old system and had content requirements that are different than reviews written today.