Quote Originally Posted by Disciple View Post
Using the BCM spring without the O ring is not recommended then? What's the best place to get the currently recommended extractor spring?
I am still running some BCM springs sans o-ring with zero issues. BCM says the o-ring is unnecessary with their springs.

But - Sprinco or Colt extractor springs for the win, do not use the o-ring with them. Buy Sprinco springs direct. I can't help with a vendor for the Colt springs.