I.C.E.R.

"They're called I.C.E.R.s. 'Incapacitating Cartridge Emitting--" "They're great. And you lost the ounce!"

- Leo Fitz and Grant Ward

The Incapacitating Cartridge Emitting Railguns or I.C.E.R.s, are upgraded versions of the Night-Night Gun technology developed by Leo Fitz. I.C.E.R.s have three times the stopping power of the Night-Night Gun.

History
"We've seen one of these bullets before. What did they use it with?" "The sleepy-sleep gun, I think." "That's right. Our team took this rudimentary concept and converted it into an aerosol grenade. Much more useful."

- Ott and Diaz

Lorelei
Leo Fitz debuted his new Dendrotoxin-based stun weapons in the operation to apprehend Lorelei at Rosie's Desert Oasis in Nevada. The S.H.I.E.L.D. team incapacitated the enthralled civilians with I.C.E.R. technology.

Secret Phone Line
When Melinda May realized that Leo Fitz had discovered her secret phone line on the Bus, she attempted to shoot him with an I.C.E.R. before he could tell anyone. She was stopped by Skye and Phil Coulson at gunpoint who believed she worked for the Clairvoyant.

S.H.I.E.L.D. Civil War
I.C.E.R. technology was used by Coulson's Team, when they crept into the Hub after Victoria Hand gave a kill-order against them since she believed they were HYDRA sleeper agents, because Agent Coulson only wanted his fellow agents incapacitated, not killed.

Phil Coulson and Melinda May went undercover as ex-S.H.I.E.L.D. scientists hoping to be employed by Cybertek in order to gain access to Cybertek files on Deathlok. When they presented the interviewers, Ott and Diaz, with an I.C.E.R. bullet to show their invention, they were turned down for employment because the technology was already given to them by HYDRA.

Catching Carl Creel
At the Potomac Plaza in Washington, D.C. Glenn Talbot is attacked by Carl Creel. Before kidnapping him Melinda May and Skye saved him. They then take him to the Cage. Here Phil Coulson tricks Talbot into revealing information, before Coulson puts him to sleep with an I.C.E.R.

Phil Coulson send out a team, consisting of Melinda May, Skye, Antoine Triplett and Lance Hunter to capture Carl Creel. On this mission they were told to take Creel out with I.C.E.R.s. Hunter, who wanted to kill Creel as revenge for the death of Isabelle Hartley used his I.C.E.R. to take down the other members of his team. He then took the rifle of Triplett, which he wanted to use to kill Creel.

Trivia

 * There are many versions of the I.C.E.R.s, based on the design of many different firearms, such as pistols, shotguns, sniper rifles, sub-machine guns and assault rifles.
 * In the Marvel's Agents of S.H.I.E.L.D.: Season One Declassified Slipcase the full acronym is revealed to be 'Incapacitating Cartridge Emitting Railgun'.

Appearances

 * Agents of S.H.I.E.L.D.
 * Yes Men
 * End of the Beginning
 * Turn, Turn, Turn
 * Nothing Personal
 * Ragtag
 * Beginning of the End
 * Shadows
 * Heavy is the Head

Behind the Scenes

 * The actual props for the I.C.E.R. pistols were first used in the TV series .