AR15.Com Archives
 Gas Block Install
10milg29  [Member]
9/1/2011 9:29:53 PM
I was able to install my free float aluminum tube on my 20" A4 today. The install was easier than I anticipated. My question lies with the gas block installation. I found my CCW permit to be about the thickness of the handguard retention "piece" that was removed. I stuck the CCW card between the block and the lip on the barrel. I used two levels, one on the receiver rail and one on the gas block for lateral alignment. Is this a satisfactory installation technique? Thanks!
DnPRK  [Team Member]
9/1/2011 10:13:07 PM
It should be good as a starting point.

Center your BUIS.
Shoot a group.
Adjust the cant on your front sight/gas block to center the group.
10milg29  [Member]
9/1/2011 10:18:09 PM
I shoot a Super Sniper, with no iron sights. All I am worrying about is proper rifle function.
Slash  [Dealer]
9/6/2011 7:21:07 PM
Nothing to worry about. Just shoot it.
10milg29  [Member]
9/6/2011 8:52:15 PM
Thanks