TexasCHLforum.com

The recoil spring has two tricks to it when re-installing it around the barrel.
1. The small diameter end goes on first.
2. The bitter end of the spring should be in the 12 o'clock position, i.e. Towards the top of the slide.

Hope this helps. I was frustrated the first few times, too, but I'm glad I hung in there. My Bersa T380 CC is part of my carry rotation when larger pistols won't fit the situation.