There is nothing basic about our basic action job at TK custom. The reason we call it basic is that we leave all of your internal parts and work with what we have! MIM parts get a bad rap. We address all the improper flaws that the MIM parts have. We also install our Extended firing pin, Wolff main spring as well as an 11LB rebound spring. Your factory 13LB trigger pull will turn into a clean crisp 8.5-9LB double action trigger. Your single action trigger will be set to an astonishing 3LB. Extended Cylinder Release (Long or Short) Extended Firing Pin Reduced Firing Pin Spring Internal Lock Plug (Removes Internal Lock) Reduced Main Spring 11LB Rebound Spring Adjustable Strain Screw (Increase Or Decrease Trigger Pull) Crane Alignment, Endshake, Reducing & Polishing of all internal radiuses. Barrel Clock Assessment Double Action Trigger Pull Tuned to your desired ammo. 6LB-9LB Return Shipping: Insured/Signature Required $50.00 ***Shop Time: 90 Days***