Editor’s Note: The Kel-Tec SU16B is a unique rifle in that it is a 5.56 rifle with a folding stock, making for an extremely compact overall package when stored. The SU16B model is ultra-lightweight, weighing only 4.5 lbs, further solidifying its role as a versatile utility rifle. While it may not be as accurate or reliable as an AR-15, we consider the SU16B an interesting alternative for specific use cases.