Geissele reaction rod

[cst]

I'm pretty sure it would work but I have to ask...Can I use my Reaction rod to assemble a Grendel? I know the external dimensions of the rod and barrel extention should be the same...but..................I don't know enough about this reaction rod...thanks!

[Buster]

Can I use my Reaction rod to assemble a Grendel?

I used one to assemble my Grendel

[cbe1962]

Yes. I got one for my last build. Best $ I have spent on tools & fixtures.