I traded for a p30L v3, that had been converted to LEM.

I've come to learn, I hate the LEM.

Anyone know the complete list of parts to make this a da/sa again? Also how difficult a job it is?

Go to HKpro.com and look in reference library section.

Not a hard job at all. The HK WebShop usually has the best prices and has excellent service.

You will need:

V3 Hammer - 209327
V3 Control Latch - 234487
Decocking Lever/Sear - 209261
V3 Hammer Spring - 214300

Thats the only 4?

Yep, that's it. You may have to change the trigger return spring if it was converted a V2 "Heavy" LEM instead of the standard V1 LEM. This is not necessary to convert it back to DA/SA but this will bring it back to the factory configuration. You can tell by looking at the trigger return spring: square stock is heavy, round stock is standard. To change that, you might want to get some of the HK pliers to make it easier.

Standard TRS  - 234389
Heavy TRS -  234405

Wow, thanks... Is there a video somewhere on this? Or a write up? I HATE the LEM, but if its just 4 parts to swap it back I may keep it