60RatRod, I came across this website Walther PK380 Mag - Page 3 - WaltherForums . One poster had luck calling S&W @ 1-800-331-0852
When I check earlier today, this website claimed to have them.
Midway's are on backorder, but I have had good luck with Midway's process and usually deal with them. I have two clips on backorder for my Ruger.