Bob, you can pull the leupold QR levers out a 1/4" or so, and reindex them on the hex nut underneath. That way you can tighten them down pretty far. I use a Leupold QRW Medium as my QR flasllight mount, and it hits the handguard when tightened in. So I just keep moving the lever around to index at the bottom half of the set up.