|This party is a "Drop-in".............|
All of the CMC line of AR15 trigger groups are self contained and tuned from the factory. The advertised pull-weights for the triggers are dead on, as I have found with my trigger pull gauge. The 3.5 pound trigger is a particular favorite of mine. Extremely fast and accurate at long distances.
If you STILL don't believe me, check out some of my experiences with this amazing trigger in the VIDEO below:
CMC Trigger: The PERFECT AR-15 TRIGGER?
Be safe and Merry Christmas!