red dot scope

[Leglifter]

I drilled and tapped my mossberg 500 myself, It was pretty easy,
the hardest part was finding the 6-48 tap that matched the screws,
Kelly hardware $2.69

[uncle buck]

there are so many brands on the market now...Make sure the one you get can take a shotgun blast...Notice that there are some for crossbows, pellet guns etc etc...Just make sure you get the one that will hold up well to the rigors of predator hunting with a 12 gauge shotgun...
Holosight,  Truglow,  BSA, Muller, etc etc etc...