WS6:
Not a problem. I knew what you meant. Besides, the distinctions tend to get fuzzy at the edges. There are some short-barreled assault rifles, such as the AR18S, HK33KA1, SIG SG543, and Galil SAR, which are almost as compact as an SMG carbine. There are also the so-called "assault carbines," such as the HK53 and XM-177E1 Colt Commando, which could be called hybrids of the assault rifle and the SMG. And then the National Firearms Act adds to the confusion by classifying firearms with shoulder stocks and barrels less than 16 in (406 mm) in length as "short barreled rifles."