Originally Posted by iLift45's
I've put Vanek triggers in a couple of Glocks. Easy and I love the 2-2.5 lb pull. How hard is it on the Hk to put these in? Any good books on step by step disassembly?
That LEM conversion kit looks sweet! What's the biggest difference compared to stock?
LEM is stock, it's a H&K Factory trigger system:
Some H&K guns can be converted to/and from DA/SA & LEM.
LEM/CDA (Law Enforcement Modification, also known as Combat Defense Action) trigger system first introduced in 2001 on the USP Compact "LEM" model.
The HK Law Enforcement Modification trigger system combines the advantages of a cocked striker component (constant level of trigger pull from first to last round fired) with a double-action hammer system.
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 on HK 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 proprietary HK LEM system allows the weight of the DAO trigger pull to be reduced to a smooth and constant 6.18 - 8.5 pounds (27.5 - 37.8 N) because the two-part hammer is pre-cocked every time the slide moves rearward. Trigger pull on conventional double action pistols is 12 - 15 pounds (53.4 - 66.7N).
The unique LEM pre-cocked hammer system combines the advantages of a cocked striker component (constant level of trigger pull and short trigger travel from first to last round fired) with a double action hammer system. Optional adjustment (by HK certified armorer) can bring the trigger pull into the 5.5 pound (24.5 N) range.