FWIW, a buddy of mine at the U.S. Attorney's office here in Philadelphia carries a SIG P226. He's a real SIG fan, he has a P226, P228, P229 and a P239.
When I was putting in my order for a Dillon 550B, he asked me to put in an order for a Master holster (to save on shipping). As usual for Dillon, order was received on time and everything.
He used his Master holster up until very recently -- while walking across a street his P226 fell out of his holster and onto the pavement! Minor finish damage to the slide and frame but he was rather ticked at the holster. He doesn't use it any more.
No slam on Dillon products but I think there might be better holsters for the P226 than the Master.
HTH,
Justin
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Justin T. Huang, Esq.
late of Kennett Square, Pennsylvania