The Firing Line Forums

Go Back   The Firing Line Forums > The Hide > The Art of the Rifle: Semi-automatics

Reply
 
Thread Tools
Old January 4, 2013, 10:08 PM   #1
psychohellbilly666
Senior Member
 
Join Date: May 12, 2009
Location: Princeton, IN
Posts: 286
Gas block rail on ar15

Ok I have a bushmaster v-match ar. It's the flat top a hand no front rail. I got a quad rail gas block. Finally got it on. Pain in the ass I tell ya. But my question is (and I've looked elsewhere) how to match the hole in the gas block up with the hole in the barrel. I read its just an eyeing type thing. I butted the block up against the thicker barrel diameter under the free float hand guard. And lined it up from side to side as close as I could. I know the gas block hole is much bigger than the barrel hole too. What can I expect if it doesn't match up?
psychohellbilly666 is offline  
Old January 5, 2013, 01:18 AM   #2
Ridge_Runner_5
Senior Member
 
Join Date: February 8, 2008
Location: Denver, CO
Posts: 1,906
If it doesn't line up fully, your spent casings will either eject at 1-3 o'clock, or won't eject at all.

Best way is to use a level to get the upper receiver flat, then use another on the gas block to make sure it is, too.
Ridge_Runner_5 is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 08:37 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.05840 seconds with 9 queries