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Posted: 1/21/2012 11:51:34 AM EST
What do you prefer and why?

I'm doing a build and it is gas block time. Think I want a single rail type but would like to know the drawbacks if any. Could be persuaded to a low profile if there are good reasons.

Any particular manufacturer you prefer?

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Link Posted: 1/21/2012 11:58:39 AM EST
I would go with a low profile...especially if you plan on putting a rail over it which is the most popular option.

I would look at Vltor, Daniel Defense and Rainier Arms...

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Link Posted: 1/21/2012 12:00:20 PM EST
Thanks for reminding me. Should have included in original post.

Rifle length gas system so no rail over the gas block.

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Link Posted: 1/21/2012 12:00:47 PM EST
Aluminum and steel expand at different rates as they heat up. Steel is the better option for a gas block.
We'll have to call it early quantum state phenomenon. Only way to fit 5000 species of mammal on the same boat.
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Link Posted: 1/21/2012 12:05:56 PM EST

Originally Posted By JoshAston:
Aluminum and steel expand at different rates as they heat up. Steel is the better option for a gas block.

^ this.

Don't scrimp on a component of the gas system. It is a gas operated weapon.
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Link Posted: 1/21/2012 1:11:26 PM EST
Steel is also a bit better because the setscrew threads will be stronger and less likely to strip out when being tightened.
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Link Posted: 1/21/2012 1:23:03 PM EST
Get a YHM low-pro gas block. They are very compact, and made from steel. In addition, they are much cheaper than everyone else.

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Link Posted: 1/21/2012 3:52:18 PM EST
Originally Posted By JoshAston:
Aluminum and steel expand at different rates as they heat up. Steel is the better option for a gas block.


What he said.

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Link Posted: 1/21/2012 5:35:45 PM EST
Is the LaRue LT 202 low profile gas block aluminum or steel?

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Link Posted: 1/21/2012 6:59:53 PM EST
Originally Posted By JTY:
Get a YHM low-pro gas block. They are very compact, and made from steel. In addition, they are much cheaper than everyone else.


This. Install went great. I used loctite on the set screws. (Think there was two but maybe one. It's been awhile) hasn't gotten loose at all.

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Link Posted: 1/27/2012 3:45:31 PM EST
Went with a Rainier Arms Low Profile Stainless Match.

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Link Posted: 1/27/2012 4:24:58 PM EST
Steel.
I just don’t trust alum in this application.

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Link Posted: 1/27/2012 4:26:51 PM EST
Originally Posted By PFC:
Steel.
I just don’t trust alum in this application.


Convinced me steel is the way to go.

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