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Site News The People of Virginia VS Grabigial BanBerger | ARFCOM News
4/17/2014 5:20:58 AM EDT
So I just bought a Daniel Defense M4 barrel with the FSB already installed.  Do I have to remove the FSB to install the barrel or can i jimmy the gas tube around while installing the barrel and barrel nut?
4/17/2014 5:26:54 AM EDT
[#1]
Install the gas tube and gas tube pin after you tighten the barrel nut and have it aligned with the tube. You can hand tighten the barrel nut and see that you can insert the gas tube almost completely into the upper with the BCG removed.
4/17/2014 5:32:19 AM EDT
[#2]
Quote History
Quoted:
Install the gas tube and gas tube pin after you tighten the barrel nut and have it aligned with the tube. You can hand tighten the barrel nut and see that you can insert the gas tube almost completely into the upper with the BCG removed.
View Quote

 

thanks
4/17/2014 5:42:17 AM EDT
[#3]
I'm was assuming the barrel nut is already installed, if not you will need to removed it to install the barrel nut.

This is a good series on gun assembly
AR-MPR AR-15 Build: Upper Part 2: Barrel, Gas Block, Gas Tube
4/17/2014 5:47:53 AM EDT
[#4]
Unfortunately no the barrel nut isn't already installed.  I bought everything separate.
4/17/2014 5:56:16 AM EDT
[#5]
How were you planning on getting the barrel but around the FSB?
4/17/2014 5:57:48 AM EDT
[#6]
Quote History
Quoted:
How were you planning on getting the barrel but around the FSB?
View Quote


yeah...about that...
4/17/2014 6:11:46 AM EDT
[#7]
A post I found said the tapered pins are shipped loose enough to remove easily. Drive the pin small end toward the big end.
4/17/2014 6:13:05 AM EDT
[#8]
Quote History
Quoted:
A post I found said the tapered pins are shipped loose enough to remove easily. Drive the pin small end toward the big end.
View Quote



Thanks Everrest, you've been a huge help.
4/17/2014 6:51:37 AM EDT
[#9]
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