moved from build thread rebarrel ruger american

[Harpoon1]

The bolt and mags are compatible, so, should be no problem.

Having said that, IMO , you’d be better off just buying another Ranch in Grendel. It’s basically the same cost or cheaper than getting a new aftermarket barrel. Then you’d have two complete rifles and/or sell the 7.62x39 off to offset the cost of swapping out.