The stock should be pretty easy to adapt but may require some minor fitting. The SKLTN bolt release sits up higher as it should clear easily but if I'm not mistaken the defiance ejection port cutout may be a little larger but that's only cosmetic. Maybe some minor fitting at the bolt handle cut out also. Most stocks require some "final fitting" to fit just right.
The action tenon threads I think are the same but head spacing may be different due to recoil lug thickness. Unless, you bought a Remage type prefit you may have some issues. I'd call Pure Precision in the morning and ask. I have a SKLTN action and love it.
Good luck