"I am a huge fan of the T4E line of personal defense and training weapons from Umarex. I am also a fan of large revolvers, there's something satisfying about the feel of a large bore revolver in your hand, and the HD50 fits that bill, like a glove. Of the revolvers I own, the H8R, the 8" Dan Wesson, the Brodax, the HD68,and the S&W model 29 Dirty Harry special, the HD50 is the best of the bunch. Firing .50cal rubber, powder, pepper, steel, and aluminum balls, with a force, and a report that will send a would be attacker, or trespasser running for the hills. With the least of the less lethal ammo, the rubber balls, it packs quite a punch, and with 5 more behind it, started with a new 12g CO2 cartridge, and a quick pierce button, that person will be rethinking their pursuit. Quick change 6 round cartridges, comes with 2, and it's easy to get extras from evike, and very low maintenance. Pickatinny rails above and below for lights, sights, and lasers, but don't discount the well visible iron sights that come with the gun. Full polymer body, with metal alloy internals, make this piece nearly indestructible. As a plinker, it is alot of fun too. With the steel and aluminum shot, you'll be blowing holes through 1/4" plywood, and with few moving parts, the CO2 expenditure is small, therefore you get the max of each cartridge. It is one of my favorite handguns, and I'd buy it over and over again if I had to, but still have #1 for 4+ years.