#1, The difference between an Enfield and Springfield Bayonet is most easily determined by looking at the base of the bayonet, where the blade curves to meet the barrel band. A Springfield bayonet tapers smoothly to the bend, while an Enfield bayonet has a small ridge on the blade before it bends. #2, Fitting a MVTC Enfield with a bayonet will be problematic, as they are reproductions of the Enfields produced for Indian troops, and the front sight is, as you have found, much larger than the currently made Armisport or Euroarms reproductions. I own two, which are "loaner" rifles for reenactors, and have had to resort to buying an Indian made repro Enfield bayonet, and using a dremel with a grinding bit to enlarge the opening for the front sight and the area where it slides to lock into position. Hope this helps!