Changing a gas block

**matt g** · 02-24-2010, 12:24 AM

How hard is it to properly align a gas block when you install one?

**slowryde45** · 02-24-2010, 12:36 AM

Quote:

Originally Posted by matt g

How hard is it to properly align a gas block when you install one?

changing out your gas block

how to change out your gas block

**matt g** · 02-24-2010, 01:49 AM

Is there a way to make sure it's dead-nuts on? I'm worried about sight alignment.

**Highpower** · 02-24-2010, 03:11 AM

Center your rear sight (mechanical zero) and test fire. If the alignment is off, loosen the set screws on your gas block and turn it slightly in the direction of your POI. (eg. If it's shooting to the right - turn the gas block to the right.) Tighten set screws and test fire again. Repeat as necessary.

JonM · 02-24-2010, 09:12 PM

Quote:

Originally Posted by matt g

Is there a way to make sure it's dead-nuts on? I'm worried about sight alignment.

if your using a picatinny block you can level the receiver then level the block. same as leveing a scope in a way.

Sniper03 · 06-20-2010, 07:41 PM

Matt,

I usually take a small bubble balance square 5" And bubble balance the flat top receiver cross-ways to be sure it is square in the vise. Then I repeat the same procedure on the gas block picatinny rail. Both should be level with each other. Very seldom do I have a sight problem if installing a flip up front. However mostly I use the Gas Block to do away with the iron sights and put a scope on a rifle.

02-24-2010, 12:24 AM	#1
matt g Supporting Member Join Date: Sep 2007 Location: Jefferson State Posts: 3,978	Changing a gas block How hard is it to properly align a gas block when you install one? __________________ "'Did you ever wonder why we had to run for shelter when the promise of a brave new world unfurled beneath a clear blue sky? " Roger Waters Vote freedom, join the Libertarian Party.

02-24-2010, 01:49 AM	#3
matt g Supporting Member Join Date: Sep 2007 Location: Jefferson State Posts: 3,978	Is there a way to make sure it's dead-nuts on? I'm worried about sight alignment. __________________ "'Did you ever wonder why we had to run for shelter when the promise of a brave new world unfurled beneath a clear blue sky? " Roger Waters Vote freedom, join the Libertarian Party.

02-24-2010, 03:11 AM	#4
Highpower Supporting Member Join Date: Oct 2009 Location: Midwest Posts: 541	Center your rear sight (mechanical zero) and test fire. If the alignment is off, loosen the set screws on your gas block and turn it slightly in the direction of your POI. (eg. If it's shooting to the right - turn the gas block to the right.) Tighten set screws and test fire again. Repeat as necessary. Last edited by Highpower; 02-24-2010 at 03:03 PM.Reason: added POI clarification

06-20-2010, 07:41 PM	#6
Sniper03 Junior Member Join Date: Jun 2010 Location: Tennessee Posts: 1	Gas Block Alignment Matt, I usually take a small bubble balance square 5" And bubble balance the flat top receiver cross-ways to be sure it is square in the vise. Then I repeat the same procedure on the gas block picatinny rail. Both should be level with each other. Very seldom do I have a sight problem if installing a flip up front. However mostly I use the Gas Block to do away with the iron sights and put a scope on a rifle.

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