whatever you use, be it an ithaca, 870, mossberg, or winchester, it must have a light on it.
it's only polite to see who you're shooting at.
my dad's HD gun is a defender with an 8 round butt cuff, sling and forend light.
mine is a 500 persuader with ghost ring sights, a butt cuff, a sling, and a chunk of mousepad attached to the comb so i don't have to crane my neck to see the sights.