BMCM...the spring number on the bag (came from Midway) is 41405 111816.

BlueDot37...yes, this is the exact problem as you described. With the new spring, which happens to be green and the same amount of coils as the old spring. The slide does not go as far back as with the old spring, and with no spring.

Did I get a spring with thicker coils? It was supposed to be a bone stock original spring rate.