Ever heard of Element AK-74 magazines?
 

I came across these on Ebay:
http://cgi.ebay.ca/Element-120-rds-O...3286.m63.l1177

I've never ever heard about Element making AK-74 magazines.. and I've scowered Red-Alliance and google for info..All i get is info about thier metal bodies.

Does anyone know anything about these? If they are any good? Any help is appreciated!