Numrich has the Magazine floorplate here:
http://www.e-gunparts.com/product.asp?chrProductSKU=1101660B&MC=
and the magazine spring is here:
http://www.e-gunparts.com/product.asp?chrProductSKU=909750B&MC=
Nice and cheap!
The FBP bolt is copied from the MP40 but the mag is a sten mag. That means the spring will be too big for the MP40 mag and so will the floorplate.....The FBP was designed with features from the MP40(bolt, barrel), US greasegun M3(stampings) and the Sten(mags).Darivs, are these good quality springs? Will a spring from an FBP mag work? I've got FBP bolts to run perfectly, some require a little work, but the extractors are $5, not $50.