Who makes good ones? I'm thinking for a fun range toy and it would be nice and easy to put in a bag and have 5.56 in a small package. I'm only guessing here, but 5.56 in a 10" barrel or so is far more powerful then a handgun round. with a sling and resting against your cheek I'm guessing fairly easy 100-150 yard shots are obtainable? How much do they run and are they just called an AR15 pistol? I'm considering something like this or a Kel-tec SU16 folder. I would like to have the 5.56 and I'm thinking the SU16 would be accurate at longer distances, but I'm unsure of the build quality and the price is not cheap. I've read that carbine AR's have more issues then mid lengths. Are those issues worse with the handguns?