AR-10 30 cal barrel ?

[Digger]

Currently putting together a AR-10 and posted earlier about barrel availability and everyone here was great at throwing out the names of barrel makers , I appreciate it much.
Maybe I missed it somewhere but ....
been looking for a 20 inch barrel with 1-12 twist and so far have found only special orders or custom machine build ...
With this .... has any one seen such a barrel for a 30 AR in stock , ready to go out the door ?
I do apologize if I have missed such.
thanks
digger

[Mauser48]

Hard to believe a 20 inch 1:12 barrel is hard to find. Are you looking for a specific profile? Have you tried krieger or lija? Shilen is also very good.

[akajun]

I was getting ready to machine one in 308 from a green mountian barrel blank, chrome moly. I could easily do two at a time if your not in a hurry? PM me if interested.
Your not by chance going to be building this for highpower competition are you? I love the .308 with a 1-12 twist, shoots the tnt 125's all the way to 175smk's great in my NMm1a. But like you all I can find already made was 1-10 twist, which wont shoot the light bullets I like at the short line.