Source for 5" M&P40 barrels

[pdcrig]

Looking to build a FrankinM&P from some new parts and I need a 5" barrel in .40. I picked up a new 2.0 FDE 5" slide with no other parts.
I've looked everywhere but it's showing out of stock or discontinued.
Any advice?

 

[CGhelofxr]

M&P L/Pro 40S&W (5.01 OAL) for 1.0 & 2.0 - KKM

Hope this helps

 

[pdcrig]

Thanks. I'm aware of the KKM option and I may have to go that way. They make great barrels. But I'd really like OEM.