Question about gas tube length

I’ve done a search, but did not find the answer…

What is the actual measured length of a midlength gas tube?

-KW

Factory new DPMS CAR length gas tube measures 9 3/4"
Factory new RRA midlength gas tube measures 11 3/4"
Factory new DPMS rifle length gas tube measures 15 1/8" (actually about 1/64th or so longer than 15 1/8")

Thanks for the really quick response.

I have a follow-up question, if I may: what type of gas tube is 12 1/4" long? Is that for a .308 midlength or ???

-KW

Not sure, it might be a KAC (Knights) midlength.

Thanks again.

-KW