View Full Version : 6.8 spc flash hider on a .556 barrel
Is it unsafe to use a 6.8 SPC Flash hider on a .556 barrel?
But it won't work as well as a real 5.56 model most likely, and you'll have to deal with a different thread size than the standard 1/2x28 used by 5.56.
You answered my follow up question as well... I figured there would be a TPI difference. Thanks much!
04-11-2012, 10:10 PM
Yep, 6.8 uses the same threading as 7.62.
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