^ is
Just remember, to hit it twice, or hit space after it - dead_circumflex can be also used "mixed" with some other letters. Personally, I got it binded for lvl4 'm' key.

May it be, that You can use 'circumflex' to get instant version, without need for space - but, this way You loose ability to mix it with other characters. I haven't tested it with 'circumflex', just 'dead_circumflex'.