I just upgraded to the Hiperfire 24C trigger and absolutely love it, it is phenomenal. The break is crisp and clean, there is a micro millimeter of creep in the trigger, that is almost un noticeable. But I actually find it helpful because it lets you ride the razors edge of break. Also the reset is very short and has a tactile and audible feedback.
The Hiperfire trigger is a non standard AR trigger, it uses a two spring design for the hammer, that produces an unusually hard hammer fall for a match grade trigger. The trigger comes with three spring kits for tuned weights.
The trigger is a little strange as far as design is considered, and complicates installation .
The trigger can either be a straight trigger with a "shoe" or a standard curved trigger.
The flat triggers shoe can be moved up and down about 3/8" and slightly adjusts the felt trigger pull.
I couldnt be happier with the Hiperfire, and since it runs the same price as competitors like Timney and Geissele you cant go wrong.