I've had my PTR-91F for about 7 years, used to be on these forums quite a bit.
I recently decided to mount a Hi-Lux CMR 1-4x, and the only way it seemed "right" was on medium rings, which made removing the rear drum necessary. The old scope was taller and I used one of those plastic cheekrests that plug into the buttstock holes. It just didn't seem to work as well with this new scope, seemed awkward.
Does anyone make a low profile flip-up style rear sight for the 91?
Also, any real tried-and-true recoil reduction? Sometimes I shoot a friend's 16" AR-10 with a muzzle brake and am downright jealous, barely any felt recoil. I really don't want to leave the PTR behind as I love nearly everything else about the platform.