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[ARCHIVED THREAD] - barrel question

Posted: 11/26/2014 9:27:13 AM EDT

if a barrel is 18 inches and has a mid length gas system, what size rail do I need or would need? 10 inch or longer?

Posted: 11/26/2014 9:36:01 AM EDT

[#1]

I went with a 13", but I think a 15" would be fine.

Posted: 11/26/2014 10:59:42 AM EDT

[#2]

Quoted:

if a barrel is 18 inches and has a mid length gas system, what size rail do I need or would need? 10 inch or longer?

View Quote

If you want the gas block covered, yes 10" or longer will work.

Typically, people run 13" or 15" rails on 18" rifles. I have a 15" Geissele SMR MK1 on mine.

Posted: 11/26/2014 11:30:34 AM EDT

[#3]

PSA has there 15" on sale for $99.00 would look good on a 18" barrel.

Posted: 11/26/2014 2:05:29 PM EDT

[#4]

Topic Moved

Posted: 11/26/2014 10:28:32 PM EDT

[#5]

i need a gas block, low profile, will any work on a bcm barrel?

Posted: 11/27/2014 12:20:32 AM EDT

[#6]

Quote History

Quoted:

i need a gas block, low profile, will any work on a bcm barrel?

View Quote

Why not get the BCM? I've installed a couple, and they work great, look great, and are very reasonably priced.

[ARCHIVED THREAD] - barrel question

AR-15 » Rifles, Uppers, Lowers, Barrels, and more

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