The liberty fighting triggers is the standard trigger for all their builds.  It is a high quality, ultra reliable and CONSISTENT combat trigger.  Where Mil-Spec triggers can vary between 6 and 9 lbs the LFT will always get you a pull between 6 and 6.5 lbs.  Their triggers use high quality QPQ stainless Trigger and Hammer pins, Mil-Spec springs and come ready to install with a stainless slave pin that will come in handy for future builds.