Significant AR Upgrade MIL Upgrade, LE/SWAT, Personal Utility Single Stage Semi-AutoBONUS BENEFITS Radical Sear Mechanics(TM) Medium Weights, 4 1/2 and 5 1/2 lb. Pulls Smooth Accurate SwingFast Hammer Head(TM) Faster Lock-Up More Accurate MIL++ Heavy Duty Hammer Springs Very Hard Hammer Strikes High Power Touch Off for Ultimate Accuracy Yet, Medium Pull Weights Curved Trigger with a Backbone(TM)STANDARD BENEFITS Crisp, Clean, Trigger Break Very Short Over-Travel Very, Positive Reset You Can Feel and Hear