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AR15.COM
4/20/2022 1:58:00 PM EDT
I have a 11.5" upper and I'm looking at the flash hider. It looks like it is just a crush washer. Do you guys use rockset during installation or is it just a crush washer?
4/20/2022 4:06:30 PM EDT
[#1]
If it's our standard 11.5", we only use a crush washer.  If it's one of the 16" commando's (11.5" barrel with 5.5" FH attached) then it's pinned and welded.  

Jesse
4/20/2022 5:27:28 PM EDT
[#2]
Thanks for the response
4/21/2022 10:46:44 AM EDT
[#3]
You're welcome.

Jesse

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