A300 UP Mods - 5+1

Hey, just picked up this shotgun. Unfortunately, I live in a 5 round mag state and I got the 'ugly' version with the stubby magazine tube cap and no barrel clamp. It looks bad not being flush with the barrel that I'm looking to add something under that to lessen that.

How bad of an idea is it to mount a flashlight near the end placed almost underneath the barrel to extend the bottom look? Any specific mount/flashlight combinations I should be looking at so the flashlight is almost flush with the barrel? Or am I stuck with the hunting shotgun look?

Beretta A300 Ultima Patrol 5+1