Want to swap my upper receiver RH to LH on my 6.5 Grendel will a standard AR 15 223 Reaction rod work on a 6.5 Grendel barrel?

Or just use a upper receiver action block?

Link shows a reaction rod or tool that fits into barrel to prevent torque on upper receiver.

https://botach.com/kz-barrel-spline-socket-steel-rod-ar15-m4-upper-receivers/

Last edited by kk alaska; 03/16/24.
kk alaska

Alaska 7 months of winter then 5 months of tourists