The so-called "D" sling swivel pattern appears randomly on 20th Series T-99 rifles. Have never seen one on a later Kokura T-99.Hello Josh :
Have just read both the old and new editions of the "Japanese Type 99 Rifle" books and it basically says the same thing, that use fo the "D" rear sling swivel ( cavalry ) has been reported randomly in the No and 1st series by Nagoya Arsenal. Nothing is mentioned regarding that feature on early Kokura Arsenal production. Vicasoto