Yes, recoil springs are the same for both P30 and P30L.
Anyone have an info as to whether or not the 9mm p30 and 9mm p30L have recoil springs with the same spring constant?
As you can see, this has been a boring day for me at work and my mind has wandered on to "more important" things.
Actually, I've seen just the opposite: more P30L's are prone to break-in issues. The recoil springs for both guns are the exact same part, down to the part #.
For the P30:
1. Same spring constant with shorter length implies less restoring force on the slide implies faster rearward slide velocity.
2. Shorter barrel length, etc. implies less recoil momentum implies slower rearward slide velocity. This is not good (here's where I screwed up)
3. Less massive slide implies faster rearward slide velocities.
My guess is 1 and 3 dominate and results in faster rearward slide speed and hence better extraction/ejection performance for the P30.
Current: HK45C, P30L, P2000SK, MR223
Past: P2000, P30, P7M13, Expert, G3 (MKE T41)
Plans: USP 9 SD, MR308