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Leadslinger585
01-28-22, 10:42
I'm putting together a 16" .223 build using Proof Research carbon fiber barrels.

https://proofresearch.com/barrels/ar-type/

I'm not sure which 1:8 twist barrel to get. They offer 2 gas system lengths: a mid and an intermediate. I'll be shooting 62 grain ammo, and wanting to use a CGS Group Helios DT (https://cgsgroup.com/product/helios/) suppressor (direct thread).

georgeib
01-28-22, 12:41
Unless I'm missing something, I don't see the downside of increased dwell time with the longer gas system. Probably even more so with a high back pressure can like the Helios.

Clint
01-28-22, 15:32
Will the suppressor be used full time?

Leadslinger585
01-28-22, 18:08
Will the suppressor be used full time?
That's the plan

georgeib
01-28-22, 18:27
Will the suppressor be used full time?

Clint, do you guys have intermediate length gas eztune tubes?