HK45, USP LEM Conversion Kit - Complete Reviews

H&K Heckler & Koch HK45, USP, USPC Kit - LEM - Complete - Universal HK German "universal" LEM conversion kit for USP, USPC & HK45, and HK45C pistols. This kit converts your V1-V10 HK Pistol to the LEM configuration. Each LEM kit includes all of the parts necessary for the light LEM 4.5-5 lb trigger pull and the heavy LEM 7.5-8 lb. pull. LEM Kit Contents: Hammer Cocking piece Hammer rebound spring Light trigger return spring Heavy trigger return spring Hammer spring (long) for USP, USPC & HK45 Hammer spring (short) for the HK45C Sear Hammer Axle (solid) Compatible With: HK USP 9mm HK USP .40 HK USP .45 HK USP compact 9mm HK USP compact .40 & .357 Sig HK USP compact .45 HK USP Expert HK USP Elite HK45C, HK45C Tactical HK45, HK45 Tactical Please Note: Any pre-2005 production USP variants also require the purchase of the new style catch ( part number 219442). The LEM kit will not work in the P2000, P2000SK, P30, P30L, VP9 & Mark 23 USP LEM & HK45 Trigger Pull Weights Quick Guide: Use the trigger return spring that may be in any newer production HK pistol or HK part # 209266 (black colored, thinner trigger return spring) for light LEM trigger pull, approximately 4-5 lbs. Use the square spring-shaped trigger return spring in the kit for the heavier LEM trigger pull, approximately 7-8 lbs. Developed especially for a U.S. government agency, the Law Enforcement Modification (or LEM for short), is a unique trigger mechanism created specifically to improve the trigger performance and reduce the weight of the Double-Action Only (DAO) trigger pull in the P2000SK, P2000, USP, USP Compact, HK 45, and HK 45 Compact pistols. With this mechanism, HK pistols can be fired like a standard DAO semi-automatic pistol, where every round is fired by simply pulling the trigger fully rearward with the hammer starting at the forward rest position. The design of the propriety HK LEM system allows the weight of the DAO trigger pull to be reduced to a smooth and constant 7.5 - 8.5 pounds because the two-part hammer is pre-cocked every time the slide moves rearward. Or a smooth 4.5- 5.5 pounds if the operator opts for the lighter trigger pull configuration.