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[alingo2001]

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Edited October 17 by alingo2001

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[Alleycat72]

An adjustable gas block isn't going to help that. It will only restrict the gas more than it is now. 

[expendable]

What suppressor?
You will probably need to change the buffer and spring. 

[alingo2001]

Sig SLH 7.62

[ThyKingdom]

Mine needed an adjustable gas block because it was so over gassed suppressed, but that wasn't with .300blk subs. It's either extremely overgassed or under gassed(obviously). Different solutions for both. What's your ejection look like? Any other information you can give ?

[alingo2001]

They don’t eject at all. Have to drop the mag and pull the charging handle back to get it out. 

[Alleycat72]

1 hour ago, alingo2001 said:

They don’t eject at all. Have to drop the mag and pull the charging handle back to get it out. 

What about supersonic? How's the ejection? Are you shooting hand loads or factory ammo? 

It could be as simple as a misaligned gas block or wrong powder for subs. Could be the wrong port size. All easy to fix. 

[alingo2001]

Haven’t shot super yet. This was the first time shooting it period. I built the upper so could be so misalignment. The subs were factory 220gr. 

[ThyKingdom]

3 hours ago, alingo2001 said:

They don’t eject at all. Have to drop the mag and pull the charging handle back to get it out. 

If they are not ejecting at all it means you are getting insufficient gas. Weird stove pipes malfunctions would be your bcg is moving to fast, meaning to much gas. Probably misaligned gas block or an issue from the factory with the port size not being drilled out enough or a gas tube not being to spec or misaligned. It's rare to be that under gassed with a suppressor...your getting what I get when I turn my adjustable gas block all the way closed, meaning no gas coming back into the system. 

I would check gas back alignment as OP said. Springco does sell a yellow spring that is lighter than a standard buffer spring, you can also get a lightweight buffer and or bcg if really needed, but that shouldn't be necessary. Check to make sure everything is in alignment and(funny to say) everything was drilled out properly.

[alingo2001]

Finally got time to look at the gun today. Went to take the handguard off and looked at the ports on the barrel. Then realized I never reinstalled the gas block and tube when I had the barrel off. So hopefully can try it again tomorrow