[ARCHIVED THREAD] - Proper Gas Tube Length

Posted: 4/10/2013 2:40:52 PM EDT

I have a Seekins IRMT-R upper, Seekins Adjustable Gas block and a Centurion Arms 16" barrel. I cant for the life of me figure out if I need a rifle length gas tube, or if a mid length will work for this set up. The rail is a 13" Seekins BAR Rail.

Thanks!

Posted: 4/10/2013 3:10:10 PM EDT

[#1]

Measure the distance from the gas port to the barrel extension. That distance on a mid-length will be approximately 9".

Posted: 4/10/2013 4:46:17 PM EDT

[#2]

16 is going to be carbine or midlength. like mentioned mid is about 9" and carbine is about 7"

Posted: 4/11/2013 6:55:21 AM EDT

[#3]

Thanks! looks like a Mid-Length is what I need. I appreciate the advice!

Posted: 4/11/2013 7:22:06 AM EDT

[#4]

Do keep in mind that those measurements are simply the distances between the gas port and the barrel extension. You still have to consider the portion of the tube that goes into the gas block and the portion that protrudes into the upper receiver. So the actual length of a carbine gas tube is 9.75", mid-length gas tube 11.75". Hope this helps and isn't too confusing.

[ARCHIVED THREAD] - Proper Gas Tube Length

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[ARCHIVED THREAD] - Proper Gas Tube Length

[ARCHIVED THREAD] - Proper Gas Tube Length