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View Full Version : AR 15 Build Stock Question(s)


dfletcher
03-20-2008, 11:59 AM
My 1st build has gone very easy thus far - Stag lower, DPMS parts all went together very well, even cleaned up the trigger to go from horrid pull to very good, although I still plan on getting something better, maybe save that for the next build. I was concerned about the lower parts fitting well, didn't pay a whole lot of attention to the buttstock.

Thus far I've bought the following:
http://www.brownells.com/aspx/NS/store/ProductDetail.aspx?p=5559&title=AR-15%20BUTTSTOCK%20EXTENDER

Having 37 - 38" arms I prefer a longer stock. The stock I chose is:
http://www.brownells.com/aspx/NS/store/ProductDetail.aspx?p=16910&title=AR-15%20ARFX%20SKELETON%20STOCK

I also bought a buffer and this buffer tube:
http://www.brownells.com/aspx/NS/store/ProductDetail.aspx?p=24086&title=Receiver%20Extension%20Tube

Am I missing something? Looking at the parts, I can't visualize how everything is held together. I see the tube will screw into the receiver & the buffer detent pops up through the bottom. I see how the extender will sit on the back of the receiver & the stock will slide over the tube, the male ends dropping into the female to remain centered. What I can't figure out is how all this is socked down tight.

I've seen the buffer tube locking nut, do I need one with this set up?

Dirtbiker
03-20-2008, 12:13 PM
Ace stocks are secured by the screw in the butt plate. The don't rotate because of a key on the stock that fits into the receiver.

shark92651
03-20-2008, 12:49 PM
The receiver extension (buffer tube) screws into the lower receiver. You then slip that "extender" over the tube and it butts up against the lower receiver where your stock would normally go. Like dirtbiker said, there is a small protrusion on the stock that inserts into a cutout in the lower receiver to keep it from rotating. In your case, it would fit into the hole on the extender. Because the extender effectively makes the tube 1" shorter as far as your stock is concerned, they also include that longer spacer and screw. The spacer drops down into your stock, you then slide your stock onto the tube and tighten it down with the buttstock screw. Hope this helps.

dfletcher
03-20-2008, 3:10 PM
Great - the info really helped me visualize how the parts go together.

I have to say the whole build went very, very smooth and would say to anyone reading how it's done that it is pretty straightforward.