The SIG 552 is the compact commando variant of Switzerland's SG 550 rifle family, introduced in the 1990s by SIG Arms for military and law enforcement units needing a shorter carbine. Its distinctive rapid automatic fire has made recorded and synthesized versions a staple sound library effect. The rifle's frequent appearance in first-person shooters and tactical games helped the firing sound spread online, where editors reuse it for gameplay, airsoft footage, and action parodies whenever an authentic assault rifle burst is needed.