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Blewbyu

Armalite gas tube? Carbine or rifle? For a 16in midlength gas system

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I have read all the other post. Thanks for the help. My current gas tube only barley gets to the cam pin slot in the upper. I read you need it to get at least half way or more. I also placed the upper straight up and down and removed the charging handle and dropped the bcg and it’s smooth as butter so everything’s lined up. 

 

Thank you all 👍

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Armalite carbine gas tube is 12-1/16" long

Ar15 mid length gas tube is 11-3/4" long.

My Bear Creek 18" which they call a "mid length" had a gas port location which left the AR15 mid a lot short and the Armalite carbine a bit long, a bit long worked great. 

 

Bill

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You can find them elsewhere but I'd make sure that you are actually getting the proper part. I was looking all over trying to find a picture somebody posted that showed all of the different lengths avail.

Neighbor just bought an Aero upper and Aero seems to have gotten it exactly right with 18" rifle gas as far as tube length. :-).

 

Bill

 

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