Restricts sight picture - Precision Reflex PRI M16/AR15 Carry Handle Mount

It seems that this is an OK option for adding a dot/reflex sight to an upper with a carry handle, if there is nothing else that can be done. While co-witness or lower third cowitness may be possible, the restriction of the iron sight picture within the carry handle makes it useless except for maybe casual or bench shooting. The iron sights also take up a chunk of what is visible through the optic, micro red dots more so.
For the price, and with no other options, it may work for some but will likely be discarded soon. This and similar items can be found for a few dollars and tried on several rifles with friends, as I did. I'd recommend sinking resources into a flattop.