Engineered to fit Mark III™ and Mark IV™ framesAdjustable length of pull (LOP)Finely serrated (30 lpi) tactical style trigger with memory bump for proper finger positioningPre-travel adjustmentOver-travel adjustmentNew style plunger with tactile resetCNC machined from 7075 aircraft grade aluminumHard-coat gold anodized finishCan be used with any combination of componentsErgonomic trigger face designPat. PendingAllen keys and extra screws included