Hello. Try CDNN. I dont' think that they're on line, but can be reached by phone and orders placed that way. Anyway, a few weeks ago, I purchased an aftermarket P210 magazine from them for around $59 which costs less than the SIG factory mag, but I've not yet tested it so I cannot say if it's a bargain or not. It appears OK. I also purchased a set of their stippled SIG (new, but Danish police issue) walnut stocks for $$29.99. These are wider than the standard checkered walnut stocks that came on the pistol and fit it like a glove. It also cured the hammer bite problem for me. CDNN can be reached at:
1 800 588 9500 or FAX: 915 695 4898. Their mailing address is CDNN, PO Box 6514, Abilene, TX, 79608-6514. Hope this is of use. Best.