I've always liked the concept of the AR15 pistol, but the buffer tube sticking out there kind of kills a bit of the concealability of the weapon for my preference. No...I'm not talking about trying to stick one of these things in your pants or such, but having a 5.56 chambered weapon that can be stuffed in a small package is very appealing. I have a Kel-Tec PLR16, a relatively cheap version of the RRA model. Without a buffer tube you get a noticeable amount of increased recoil, but it doesn't make the gun unusable. Even at the low pricepoint of the PLR, it has been totally reliable. I've never had a jam or FTF. I can stick this gun in a medium sized Camelback or stuff it into a very small space in a vehicle, home, or other location. You stick a small red dot on one of these, and you can easily hit man-sized targets at 100 yards. I'm not touting the PLR over the RRA, and I think the RRA is a better quality weapon. However, the PLR is less expensive, and a decent advantage is its lighter weight. I would not expect the PLR to be a good candidate for a long life under high, hard round count...but then...that's not what I got it for. These short, 5.56 pistols offer a smaller package for better concealment. I'm not poo-pooing AR15 pistols by any means, and those guns are without question the choice for suppressed use. These bufferless models, however, offer another option, and options are good.