I got this just several days ago from a fellow Calgunner, But I've decided to go another route for my buttstock.
As from the info I got from the previous seller, this came from Brownells, its complete and ready to mount on those wanting to do a featureless or those who wants a compact BR. The tube was marred by previous owner from installing and removing it, but it does not affect anything, in fact its a tight fit when I tried it on my built.
I'm in Daly City and I'm selling this for $45.00 shipped. SOLD
No paypal account. MO or check (will send item after check clears).