Yes, that`s the one (Guarder). Warlord prices are not too bad, though the shipping is quite steep. Great quality though. Warlord ships worldwide.
Perr-mike has two suppressors on ebay at the moment, 65 pounds each. Though you may get them for a little less if you contact him here, or on Facebook.
Both suppressors with cw threads (for G&P and Systema).