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1/14/2017 8:11:35 PM
Posted: 9/24/2011 6:26:35 PM EST
I have and love my Sig 516 without a doubt a well worth investment!!

Does anyone know if it has a Milspec or Commerical Buffer tube?

I want to change it from Black to the Magpul OD stock.

Thank you.
Link Posted: 9/25/2011 2:20:26 PM EST
It must be commercial because I bought a Mil Spce Mag Pull and it fit to tight.
Link Posted: 9/26/2011 9:37:22 AM EST
Mine came with a Mil-Spec buffer tuber.
Link Posted: 10/1/2011 12:06:30 AM EST
[Last Edit: 10/1/2011 12:08:39 AM EST by Darith]
I can confirm that it is a mil-spec buffer tube because I bought a commercial spec Magpul ACS stock (which is now for sale) by mistake (the first position has a little play, but all other positions fit tight and snug). You can visually see for yourself if you remove the butt stock and view the back end of the tube (mil-spec is flat and commercial has a 5° slant):
http://www.ar15fornoobs.com/wp-content/uploads/Buffertube_Specs.jpg
Link Posted: 10/1/2011 8:09:45 PM EST
Thank you gentleman for the info!
Link Posted: 10/2/2011 5:05:23 AM EST
You know you could just paint it OD green and save the $$$....
Link Posted: 10/3/2011 6:59:18 PM EST
Thank You Darith

I've often wished someone would post a way to tell what type of stock is Mil Spec and how to identify it. Does this mean that all Mil Spec tubes are four position and COmm ar six?
Link Posted: 10/3/2011 7:00:17 PM EST
Thank You Darith

I've often wished someone would post a way to tell what type of stock is Mil Spec and how to identify it. Does this mean that all Mil Spec tubes are four position and COmm ar six? I guess the one I purchasde was a Comm stock by mistake.
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