I have a High Standard AR-15 M4 with a scope and had a problem chambering a round due to the scopes low profile on the flat top receiver.
I bought a Badger Ordnance Tacticle Charge Latch.
I took about two minutes to change.
Remove the charge handle.
Drift out the pin making sure to capture the spring ( you don't want that flying across the room) w/1/16" punch
Positioning the new latch
Drive the roll pin back in place.
It works great. Much easier to chamber a round without having to reach under the scope.