 Almost all parts, including screws cannot be interchanged with the Japanese Type 38.Unlike the Siamese Type 66 (แบบ ๖๖), this rifle is a standard Japanese Type 38 in 6.5x50sr that was sent as aid from Japan to Thailand in 1940.These were taken straight from assembly lines at Nagoya and Kokura arsenals, after the Japanese Imperial Chrysanthemum was canceled out by zeros along the petals.