Firearm & Gun Forum - FireArmsTalk.com

Firearm & Gun Forum - FireArmsTalk.com (http://www.firearmstalk.com/forums/)
-   AR-15 Discussion (http://www.firearmstalk.com/forums/f20/)
-   -   Magpul butt stock question (http://www.firearmstalk.com/forums/f20/magpul-butt-stock-question-37927/)

doose 02-04-2011 05:09 PM

Magpul butt stock question
 
Hello,
I am thinking about buying a Magpul MOE butt stock for my RRA ET. However, I have to choose between the Mil-spec receiver extension tube and the commercial receiver extension tube. Well, how does one tell if they have a mil-spec or commercial tube?? Any markings?? Are the dimensions different??? Thank you for your help.

Ubergopher 02-04-2011 05:18 PM

If you've got a RRA lower it should be a commercial tube. That's what mine was.

cddbrowns 02-04-2011 09:44 PM

Quote:

Originally Posted by doose (Post 437032)
Hello,
I am thinking about buying a Magpul MOE butt stock for my RRA ET. However, I have to choose between the Mil-spec receiver extension tube and the commercial receiver extension tube. Well, how does one tell if they have a mil-spec or commercial tube?? Any markings?? Are the dimensions different??? Thank you for your help.

Mil-Spec diameter is 1.148" and Commercial diameter is 1.168" Commercial has a 5 degree slant back too, the Mil-Spec does not.

Gatekeeper 02-04-2011 10:08 PM

1 Attachment(s)
The squared off or angled end of the tube is the easiest ID.
From Magpul Website

mjkeat 02-04-2011 11:32 PM

The mil-spec is made of a more durable material w/ a higher tensil? strength. It can stand up to a higher amount of force before it snaps in half. I think its 75 pounds. Im going off of memory so my #s may be off.

doose 02-05-2011 12:02 AM

All,
yep. I have the info I need and a new Magpul MOE is on the way. thanks again.

cddbrowns 02-05-2011 07:08 PM

Quote:

Originally Posted by cddbrowns (Post 437220)
Mil-Spec diameter is 1.148" and Commercial diameter is 1.168" Commercial has a 5 degree slant back too, the Mil-Spec does not.

Ooops, not diameter, but width....sorry.


All times are GMT. The time now is 07:21 PM.

Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.