You'll need a Light FPBS. Keep the V2 TRS and HS that are already in your gun.
http://www.hkpro.com/forum/hk-reference-library/40627-p2000-sk-uspc-lem-trigger-job-part-1-a.htmlThe Firing Bin Block Spring? Meaning I have to disassemble the slide. Never done that before, just done the frame.