Need a picture of the but end pf the grip and a close up of the scabbard throat markings to make an accurate call either way.
Not my bayo and these are the only photos I have. sorry :\
Here's some info about the early war M4 Bayos. Bayo Points 16 And you may view why a shot of the butt would help determine when it was made. Without that picture/shot... it is just a guess and nothing more on when it was made.