Cammenga Mags?

Anyone ever heard of or tried these mags?

http://www.saysuncle.com/archives/2007/08/06/nifty-20/

http://cammenga.com/cammenga-news.php

Geoff

I met the owner at SHOT - he was supposed to send me a couple for T&E before my scheduled kick off to the box but haven’t heard back from him. The copies he had on hand seemed well built and the concept seemed to be well thought out (ease of loading, ease of cleaning), but without several thousands rounds down range - hard to gauge how well they would hold up. Between SHOT and now I would have been able to put 10k plus rounds down range through the mags but like I said - never heard back from him. Edited to add - he wasn’t certain about price range when I met him - but I see now he wants $40 a pop - if the mags are well-built and hold-up over serious and long-term use - might not be a bad option, but vetting them is definitely a must.