Need advice on Grendel to buy/build

[TangoFoxtrot]

If you go 16" just remember carbine gas length, depending on barrel gas port size "MAYBE" mid length, if going 20" or longer then rifle length. I would recommend rifle a2 buffer system on any of them because rile buffer system has alot wider weight tunability.

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[Dustycoyote]

Thanks again to everyone. Good info.

 

[TangoFoxtrot]

Thanks again to everyone. Good info.

No problem.. i have several in ar15.. let me know if you need soecs

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