[reyloxdm40]

I took apart the lower half and sent all the parts to robar for np3 plus.I think I lost part #30 the cocking piece spring so I'm going to order another. Should I replace any other parts considering I have 2500 rounds through the gun?

 

[01deuce]

You really don't need to, but since it's apart, then maybe a new trigger return spring.

 

[reyloxdm40]

I just realized I was looking at the P2000 diagram, there is no cocking piece spring on the P30 lol...

 

[TooSixy]

Yes, there is. It's called Elbow Spring for Hammer (209275). All the P-Series have the cocking piece spring.
But don't know why you want to replace any of the parts when the gun only had 2,500 rds thru it.

HK P30 Elbow Spring - HKPARTS.NET