ICER guns from Agents of S.H.I.E.L.D.

The Incapacitating Cartridge Emitting Railguns, or I.C.E.R.s, are upgraded versions of the Night-Night Guns developed by Leo Fitz and Jemma Simmons. They are the standard non-lethal weapon for S.H.I.E.L.D. agents.