ALL H&R & NEF butt stocks are interchangeable since they used a tang latch. Forends too, BUT the barrel channel will be pretty large if your putting one form say a 10 ga on a 22 sporter.
There are different bolts for thumbholes to std stocks and some early stocks used screws instead of bolts, but even those will interchange...
On the forends, sometime in the 80's they changed forma 1/4-28 to a 1/4-20 thread.
BTW, the FAQ's are your friend and have all this info included.
CW