I tried this out with my cousin's P226 in Cali. It looks like crap to me but it's pretty useful. He tells me it's a pretty new product. Not even sure if it's available in Canada (the bridge mount).
http://www.sigsauer.com/SigStore/ShowProductDetails.aspx?categoryid=104&productid=363
http://www.sigsauer.com/SigStore/ShowProductDetails.aspx?categoryid=104&productid=363


















































