Just my opinion, but I'd steer clear of pistol grips and other "tacticool" features. I use a stock 12 ga Mossberg 500 with an 18.5 barrel for HD. Well I haven't "used" it yet, but it's what's available. Also, the ammo I've stocked is #00 buck in 2-3/4" shell. They fire 9 large lead pellets...