AR10 Barrel choice

I have the Criterion and it shoots 1/2" with plain old 140 American Gunner. It's a heavy baseball bat of a barrel and appears to be 9oz more than the Wilson. One big selling point for me was the nitride finish. In theory it should last quite a bit longer than plain steel. You will need a good gas block with the 6.5 though. I had to get an Superlative Arms bleed off to control the high pressure...my Odin Works could not tune it down low enough. I would buy the Criterion again...

IMG_20200522_180757.jpg
 
I have the Criterion and it shoots 1/2" with plain old 140 American Gunner. It's a heavy baseball bat of a barrel and appears to be 9oz more than the Wilson. One big selling point for me was the nitride finish. In theory it should last quite a bit longer than plain steel. You will need a good gas block with the 6.5 though. I had to get an Superlative Arms bleed off to control the high pressure...my Odin Works could not tune it down low enough. I would buy the Criterion again...

View attachment 7478407
what length is that one? hybrid profile?