As a long time owner of the SU-16CA, I was excited when Kel-Tec announced the SU-16C model late last year. The SU-16 platform is a compact, lightweight 5.56 platform that takes standard AR-15 magazines. With five models to choose from, it can get a little confusing what features each model has. For those who are not familiar with the nomenclature of the SU-16, I’ve broken it down for you…