The Action Enhancement Kit for CZ P-10 pistols features the Apex Action Enhancement Trigger paired with an Apex Performance Disconnector and an Apex Slide Cover Plate. The kit is a direct drop-in replacement of the factory polymer trigger, disconnector and slide cover plate, and provides a reduction in pull weight from sub-4.0 lbs. (w/ Apex Performance Disconnector) to 5.5 lbs. (w/ CZ Factory Disconnector). Using the CZ Factory Disconnector provides a more defined trigger break at striker release (approx. 5.5 lbs.), while using the Apex Performance Disconnector provides light, smooth take-up and linear rolling trigger break at striker release (approx. sub-4.0 lbs.). NOTE: The Apex Action Enhancement Trigger REQUIRES the use of the Apex Slide Cover Plate. Reduces trigger pull to approx. sub 4.0 lbs. (using full Apex Enhancement Kit) Maintains factory trigger pull weight of approx. 5.5 lbs. (using Factory Disconnector, Apex Trigger and Slide Cover Plate) Easy to install Direct drop-in replacement of factory components Maintains factory safety values Applicable To What Guns: For use in the CZ P-10 S, C and F 9mm models only. NOT compatible with the CZ P-10 in .45ACP, or with the CZ P-10 Micro For best performance use second generation trigger bar marked “19” or later