Of the current crop, both 4 and 6 position, who has bought/used these and what do you think? Tight/rattle free? Good quality? 80.00 cheaper than colt and mill.

Have/use both. The nod goes to the [url=http://www.bushmaster.com/shopping/buttstocks/1005-087-8988-pk.asp]6 position stocks[/url] as it's much more comfortable and rattles less than the old style [url=http://www.bushmaster.com/shopping/buttstocks/aleo-001k.asp]4 position[/url].

I suggest you get the 5 position extension tube from Vltor, and while you're at it, get the Vltor stock too.  BM stock isn't milspec but you already know that.  Later when LMT or whoever brings the Crane stock to market, you can use the same tube, but not the BM, RRA, or any other non milspec ones.  I hear Vltor and Colt tubes are made by the same folks (prob. LMT), they're better made than the BM tubes.

I agree if you are going to use a traditional styled collapsible stock, the VLTOR is the only way to go.  The magpul is the best other option IMHO, but it won't give you the traditional look.

Just for your info, Bushie, Rock River, and J&T all sell absolutely identical 6 position stocks, made by the same contractor on the same machinery. The only difference on any of them is the ID mark on the lower right side.

So if you decide to get one, go for price. Quality is the same[:D]