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Old February 15th, 2020, 04:28 PM #11
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Quote:
Originally Posted by teratos View Post
This.



SLR adjustable gas block.


This. Ive also had good results with an Odin Works adjustable gas block
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Old February 15th, 2020, 04:32 PM #12
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Thanks. Good info. Ill look into an adjustable. The Geissele Super block came with the rail and has a good reputation so I went with it. I want to get this up and running for a class next month and will probably not run the suppressor for the class.


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Old Yesterday, 10:09 PM #13
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So for an adjustable gas block, if I am using a carbine length SBR, should my goal be for a lighter or heavier buffer? I can adjust the gas block for either.
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Old Yesterday, 10:28 PM #14
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Quote:
Originally Posted by calicojack View Post
So for an adjustable gas block, if I am using a carbine length SBR, should my goal be for a lighter or heavier buffer? I can adjust the gas block for either.
That depends on what you are doing. You need enough energy for the system to cycle reliably. For a tuned competition rifle that you keep pretty clean, you might want as light as possible, even to the point of getting a light bolt carrier. For a more serious use rifle you might want reliable operation with enough extra oomph to power through a reasonable amount of fouling and foreign objects, while also not overgassing the system to a point that it beats itself to death or unlocks too early. Or gasses you out if you're running suppressed.
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Old Today, 07:00 AM #15
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Quote:
Originally Posted by calicojack View Post
So for an adjustable gas block, if I am using a carbine length SBR, should my goal be for a lighter or heavier buffer? I can adjust the gas block for either.
A good starting point is start the block low or even closed and gradually add gas til it begins to function-cycle with every shot. Start with only one round in the mag at a time. Shoot/adjust until the bolt locks back every time. Then two rounds at a time. Still locking back on last round? Add two 'clicks'(if you have an SLR GB) and that's usually a good starting point. Remember how many clicks you opened it up from a completely closed gas block so you'll always know where to start from.
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