Linebacker

"Yeah, I hear you." Saxon dragged a bandolier of shells from the case and
pulled a heavy, large-gauge shoulder arm from the foam pads inside.
The G-87 was a grenade launcher capable of throwing out a half-dozen 40
mm high-explosive shells in a matter of seconds; the Americans
called it "the Linebacker." He cracked open the magazine and began
thumbing the soda-can-size rounds into the feed. He was almost done
when he heard the low whine of ducted rotors overhead.

- Deus Ex: Icarus Effect, Chapter 2 pg. 45