Where to get a .357 bbl for a .40 USPc?

[rebar4]

Been looking for a while but nobody seems to have them, or they're always backordered. Did HK just stop producing them?

[hayseed_40]

Good luck. I have had two and got them both off the boards here. No NIB factory out there - anywhere.

Keep looking and stick to factory. Expect to pay $170-200 for a good used one.