I set up a Shockwave in 20 ga with an SB including a nice Hogue grip and it's nice to shoot even with 3" slugs or #3 buck...very effective to about 35 yds. It needs to be tapped for screw in chokes and it would make a fine and flexible defense or survival tool. Not much a 20 won't do that a 12 can when using modern ammo...Oh BTW the SB folds too.