User Panel
User Panel
User Panel
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Posted: 4/10/2024 12:09:45 PM EDT
Trying to find out gas block journal size and the inside diameter of the barrel nut.
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AZ, USA
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Posted: 4/13/2024 11:35:35 PM EDT
[Last Edit: KalmanPhilter]
[#1]
I don’t know if this is useful to you but FM sells spare barrel nuts pretty cheap. There’s a thread somewhere that shows the barrel profile. Might have been on Reddit.
https://www.reddit.com/r/ar15/comments/17n4tgp/if_you_want_a_different_barrel_on_your_fm15/ Thor posted this in GD within the last few weeks as well. Oh, that’s probably you. 
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Posted: 4/15/2024 11:38:32 PM EDT
[#2]
Haha, yeah that's me. I've just heard the 300blk uses a .750 gb journal vs the 5.56 using a .625. I was curious if they changed the barrel nut in a way that would allow using standard barrels without modifications.
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NM, USA
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Posted: 4/17/2024 8:00:50 PM EDT
[Last Edit: badkarmaiii]
[#3]
From the archived thread, you'd need one with the right taper to not interfere, and turn the stop behind the journal down to allow the nut to pass over it.
Archived Thread |
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