Problem with the grenade launcher is when he is shooting, it pops up enough to block the front sight. We taped it to get through the shooting session.
We got on paper (about an inch right @ 50yrds) and that was the limit as far as wind adjustments.
We knocked out the pins but couldn't budge the front sight at all and actually ended up bending the hood on the front sight.
Thinking about just buying a totally new sight and having it installed, call it good.
We are in Colo Springs so if there are any local AK gurus please let me know........
Cheers
J