Intermediate Gas Length?

[JohnnyDrama]

Rock River Arms may have something like what you're looking for on sale. Along with a lot of other stuff....

[sgtlmj]

Rainier Arms has several barrel offerings in Intermediate gas. I've built 3 of their Rock Creek 5R 16" Int gas barrels, and they are smoooooth and shoot like a shark with a friggin' laser on it's head.

https://www.rainierarms.com/rainier-...ck-creek-blank