Flat-top iron sights

[michael_aos]

If you're going to measure

Maybe after the cat has finished her nap.

[michael_aos]

If you're going to measure, get or borrow a set of calipers and measure from the bottom of the mount (the rail top) to the middle of the apeture (rear) or post (front) and compare the measurements. If indeed the Hayes are standard height (which they don't look to be) then the problem is how you're aligning your hat rack to get your sight picture.

From the top of the rail, to the top of the post on the Hayes Research fixed front sight measures pretty much exactly 1.0".

Mike