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Which buffer would work better for an Ar pistol with a 10.5 inch barrel? — 2 Answers

by Skee, from NV, United States Asked on March 26, 2020

Name Tacfire AR15 Recoil Buffers (4.7)
As Low As $13.00 Save Up to $1.34
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A
Answered by Nick B., Gear Expert, from IL, United States, on September 15, 2021

The standard 3 oz. buffer would work well with a 10.5" barrel.

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A
Answered by Pyroking, member, from IL, United States, on April 10, 2022

That's not enough information to give a correct answer. It depends on your gas system, caliber, and BCG. A 10.5" 5.56 pistol can very easily be over-gassed and 3oz would be way to light in that case. Do yourself a favor and get an adjustable weight buffer so you can test and tune until you find the right weight. My 11.5" 5.56 pistol requires a buffer weight between 4.75 and 5.25oz to be properly gassed. But that doesn't mean yours will need the same.

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