Just got in 5, two are sold, one is SPF, two still available. They will be sold as a set consisting of the suppressor and two pistons, metric and standard. The price for the set is $899 (MSRP for the can and $50 dealer cost for the extra piston). Price does not include applicable taxes. PM if interested. These have been hard to get, I'll list them here for a few days before posting on other sites.
Also have SWR Spectre in stock
http://www.advanced-armament.com/product.aspx?pid=647
Also have SWR Spectre in stock
http://www.advanced-armament.com/product.aspx?pid=647