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Ar9 buffer question

gober13

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The Hen that laid the Golden Legos
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Building an ar9 thinking 5.5" barrel. What weight buffer are you guys running? This will most likely be suppressed 100% of the time. Thanks
 
I run 8oz o 16"barrel along with a 308 carbine buffer spring. Experiment and see what works. Just remember that they are blow back and can is going amplify this.
 
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