The compact SG 552 Commando carbine was revealed in 1998. It has a shorter 226 mm
(8.9 in) barrel (with an open, 3-prong flash suppressor) and gas tube, ventilated handguards and a redesigned bolt carrier group that was integrated with the piston rod to form a single moving assembly. The SG 552 series rifles have a 360 mm (14.2 in) long sight radius. SIG 552 Papercraft
