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Posted: 7/22/2017 3:42:55 PM EDT
What is the barrel threaded on a HK MR556? I want the competition, but not the OOS brake installed on it...

Thanks!!
Link Posted: 7/22/2017 7:10:38 PM EDT
[#1]
Standard 1/2x28 threads, the same as any US made 5.56/223 AR.
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