AR15 6.5 grendel/.264lbc help

[Aberbaseball7]

I am looking for a barrel in 6.5 grendel or .264lbc for my AR15. I have money to spend but dont want to spend $600 on a barrel if a $300 barrel will work. After searching and searching I am not finding much in stock. Does anyone have a barrel/bolt combo in stock? Either 18" or 20".

Also would I be better getting the 6.5 grendel chamber or the .264lbc? What about twist for 100g-123g? Mainly hunting bullets?

Is the AA arms a good deal? I dont want the cheapest setup that will shoot. I would like something pretty accurate and if I need to go with a Satern barrel I am willing to do that.

[LRRPF52]

Check the Buy Trade Sell section. There's a complete 18" AA upper right now for sale. If you want a super affordable barrel, with crazy accuracy, you could start with a Criterion blank.

[ThomasA]

I have a Black Hole Weaponry barrel and I'm getting single-hole groupings from it. Haven't had the chance to measure a target yet, but it is definitely sub-moa.

[Whelenon]

Last time I was there, my local gunshop has a couple 18" Lother Walther barrels.
http://www.precisiongunworks.com/
I would appreciate that if you do call them let me know your impressions.