hrm..... Tactical Machining sells 80% unmarked lowers. you will have to finish it yourself and its not what I would call easy.
but then you can take it to an engraver and do whatever you want to it!
you don't even have to put a serial number on it.....
Assumption is the mother of all ****ups.
Know what you know, Know what you don't know. -Paul Pedzolt
"Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul