You need to have a gunsmith place an order for a few thousand with SIG. Then call back in 24 hours and cancel "because my customer heard your customer service dept. sucks."
Sad part is the pin has to cost all of 2 cents to make and may be a 5 dollar item and 2 dollars to ship . I'll PAY .... just send the dang thing SIG !
Thanks GR ....I'll give the SLC hammer monkey a shout in the AM and get one ~!
Ya Rock !........Stay safe !