
Originally Posted by
ndmiller
This sentence made it click for me......Finally.
Shorter barrels need larger ports to move more gas because there is less time (barrel length) before bullet leaves the barrel venting all gas. And vice-versa. Right?
Assuming the gas lengths are the same, yes.
And buffer/spring weights are used to compensate back to good operation with improper ports? Finally may be getting it.
Yup, your ammo choice plays a role in this too.
If I add a suppressor and not a switch block increaseing length, gas would increase, so would I just change buffer/spring to bring back normal operation? Is there a formula or just trial and error?
If you're not added an adjustable gas block, yes. There has been a lot of trial and error done by some very knowledgeable people. You can find most of that info on this site. You should be able to find the correct buffer/spring combo for just about any setup on this site
Noah
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