The tag may say poly-frame meaning polycoat frame the propriatary finish. The 40B was born out of left over parts from the COLT-CZ project and CZ attempt to enter the 1911 market. I own them both and the only difference is price. The blue book states"700-800 pieces were manufactured but never shipped,very few made it to the US" echoed by some gun writer and oblammo the price skyrocketed.
Same thing with SPRINGFIELD P-9 and the 40P. THE STATEMENT IS BOGUS.
Check back issues of Shootgun News under J&L DIST and see what they peddled the 40P for. Check gun shows for the 75d-PCR, this was police issue and were not used much usually good deals. Compact 40 with rail....sweetheart pistol.
I was in there today. In the new case, they had a P-07 9mm, and an SP-101. In the used case, they had a SP-101, and a 40P ($429).
I almost brought the 40P home with me, but it's a little bit bigger than the 75 Compact .40 I'm still in the hunt for.
FWIW, I did pick up a Win 1300 20ga for $199