The bayonet is 21 inches long. The bayonet muzzle ring inside measurement is 0.748 inches and tapers to 0.726 inches. The finish is blue but is thinning. It is marked US with an S. The scabbard is metal and the blue finish that is thinning and turning plumb color with some light pitting. The frog is leather and is flexible. It is marked MASS with a unit stamping of C2, 5. The belt hanger does rotate. There is a small stamping on the back of the leather of A. ? . Please wait to pay until I send an invoice for multiple items. PLEASE wait to pay until I send an invoice combining the items. NOTE- All item(s) are used unless otherwise stated. The pictures are part of the description. PLEASE SEE MY OTHER AUCTIONS.