You have to remember, at one point in time this was the only method of mounting optics…..and that time was not very long ago. With the adoption of flattop upper receivers the carry handle mounted optic has fallen to the way side and is not as popular anymore. But that does not mean this method of mounting optics is no longer functional.
When I built my 80’s/90’s retro carbine I had full intention of mounting an Aimpoint to the carry handle. This was the only method of mounting optics during that time period and my only exception was using an Aimpoint ML2 instead of an Aimpoint 3000.
I’ll admit that this method does provide for a slightly higher cheek weld, but it’s not so much that it makes the rifle uncomfortable to fire or impossible to use. I think most folks who are nay sayers to the CH mounted optics feel this way simply because it no longer looks “cool”. An ACOG, yea that’s “cool”! And if you have a $700-$800 optic mounted on your CH that’s gotta make you look “cool“. An Aimpoint, ahhh everyone has an Aimpoint. It’s just not cool anymore to have one mounted on your CH…….but mounted on a “bling-bling” decked out AR with A3 flattop upper……now that’s a different story. That’s “cool”!
I don’t buy it. Yes, I too have an M4gery with a Aimpoint mounted using a PRI mount, but my CAR with CH mounted Aimpoint functions just as well.