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AR15.COM
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11/9/2014 11:22:06 PM EDT
What buffer and spring setups are you guys using for MK107 in 7.62x39 pistol builds?
11/11/2014 9:14:19 PM EDT
[#1]
H2 buffer weight and standard carbine spring is what PWS recommends for their 7.62X39 uppers.  You can also use a standard carbine buffer weight in a pinch.
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