PPQ
A number of us have received a nice rear site from Turul on this board
http://www.waltherforums.com/forum/trading-post-parts-bin/47386-wts-turul-custom-tool-steel-sights-ppq-p99-p99c.html
He was nice enough to engrave mine with a stamp showing it was made by him (in the USA) and with my name...