So i found a nice barrel and receiver with mum still attached for 60 bucks so i figured i would rebuild a original looking rifle out of it. But when i got the front barrel lug for it i already had a type 30 bayonet from my bring back type 99 my grandpa left me after he passed but the bayonet will not fit on the type 38 lug i got was there different styles of lugs or bayonets for the type 38?