Changing my Ar hand guard - Page 3
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Old 04-12-2014, 08:48 PM   #21
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one to pull the ring down and one to pull the hand guard off
I like the two-person approach, when a tool isn't available.

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Old 04-17-2014, 01:49 AM   #22
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I have anther question. I was trying to switch the magpul Ctr buttstock off one of my ar's to my new one and it will not fit on the buffer tube of my new one. I'm not sure if the one it was on is a mil-spec or not the buffer tube came with a PSA build kit and I'm trying to put it on a Windham weaponry rifle.


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Old 04-17-2014, 02:43 AM   #23
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Yeah there is two different sizes mil spec and commercial .
your buffer tube is probably a commercial buffer tube

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Old 04-17-2014, 08:48 AM   #24
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I'm not sure if the one it was on is a mil-spec or not the buffer tube came with a PSA build kit and I'm trying to put it on a Windham weaponry rifle.
I'm not sure if all Windham rifles are 'commercial' fit, but I'd imagine most are...especially with so many going through Walmart and other big box stores.

So that's probably the issue. Just to calify: 'commercial' isn't terribly inferior in terms of actual performance. They work fine. It's just important that you be aware of the commercial fit before making alterations. This is why many of us prefer 'milspec'...it simplifies things and allows for a good fit across the board and easier transition (especially to higher end parts).
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Old 04-17-2014, 10:11 PM   #25
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I did a little reading and widhams are commercial. If what I read is correct that means the diameter of the commercial tube is bigger than the mil-spec tube on my other ar. Is that correct I just want be 100% sure before I order the stock.


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Old 04-17-2014, 10:40 PM   #26
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I did a little reading and widhams are commercial. If what I read is correct that means the diameter of the commercial tube is bigger than the mil-spec tube on my other ar. Is that correct I just want be 100% sure before I order the stock.


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Correct, the commercial buffer tube is slightly larger.
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Old 04-24-2014, 04:39 PM   #27
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New Windham has Commercial Stock, seems heavier than Mil-Specimageuploadedbyfirearms-talk1398353949.508761.jpg


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Old 04-24-2014, 06:14 PM   #28
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I've seen Milspec buffers be too big for a magpul stock before. Happened to me, I had to buy a replacement buffer tube. Real pain in the butt


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Old 04-24-2014, 06:50 PM   #29
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Patrick,

First of all I would not do any business with the guy that tried to scalp you for the $75.00That is absolutely ridiculous!

Secondly you can not mix match Mil-Spec and Commercial Stocks or Extension Tubes (Buffer Tubes)
You can tell by looking at the tubes on the collapsible stocks. The Mil Spec Tubes on the back end are at 90 Degrees while the Commercial Tube has a 5 Degree Angle on the end of the tube.
The Mil-Spec Tube is 1.146 in Diameter while the Commercial is 1.170 or 1.168 if you aske different manufacturers.

03

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Old 04-29-2014, 03:46 PM   #30
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Patrick,

First of all I would not do any business with the guy that tried to scalp you for the $75.00That is absolutely ridiculous!

Secondly you can not mix match Mil-Spec and Commercial Stocks or Extension Tubes (Buffer Tubes)
You can tell by looking at the tubes on the collapsible stocks. The Mil Spec Tubes on the back end are at 90 Degrees while the Commercial Tube has a 5 Degree Angle on the end of the tube.
The Mil-Spec Tube is 1.146 in Diameter while the Commercial is 1.170 or 1.168 if you aske different manufacturers.

03
This is why I only buy assemblies, not just the stock or tube. I have had issues trying to use one manufacturer milspec tube with another manufacturer milspec stock, and they were too tight. I ended up using a cylinder hone and grease to make it work.
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