Quote Originally Posted by MOLON LABE View Post
Which do you not have yet, and need? I have a Geissele reaction rod for an AR-15 / M4 you can borrow indoor swing by and use to check fit. If that's not the issue then good luck.

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Thanks for the offer! I actually have Reaction Rods in both sizes, but no barrel vise.

I haven't had any time to actually test fitting, but the extention lugs look to be a different geometry than an AR bbl extention. Figured it was worth throwing out the question before trying it and risking a self-inflicted "idiot mark" (wouldn't be the first time )

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