Fom the Black Widow websight
When ordering limbs for an older handle, please remember that beginning in 2003 all limbs are “precision crafted” to much closer tolerances than previous limbs and handles. Consequently, you may not have a very good cosmetic fit of new limbs on your old handle. We can improve the fit (we can’t make it perfect, but we can make it better) by re-sizing and refinishing your old handle. Although we can still make PMA and PSA limbs with wood riser sections, there are some advantages to the phenolic risers for you to consider. We suggest calling us before ordering LIMBS ONLY for older MA or SA handles.
I would say that they would fit, but may or may not "look" right.