WW2 Japan Type 4/Hei/Ko/Otsu SEMI-AUTO RIFLES collection 1:35/1:72

You can obtain six weapon designs, as detailed below:

Type 4 rifle
Type Hei rifle
Type Hei rifle (late)
Type Hei rifle with extended magazine
Type Ko rifle
Type Otsu rifle

The Type 4 rifle, often referred to as the Type 5 rifle,2 was a Japanese experimental semi-automatic rifle. It was based on the American M1 Garand with an integral 10-round magazine and chambered for the Japanese 7.7×58mm Arisaka cartridge. Where the Garand used an 8-round en-bloc clip, the Type 4's integral magazine was charged with two 5-round stripper clips and the rifle also used Japanese-style tangent sights.

The Type 4 rifle had been developed alongside several other experimental semi-automatic rifles. However, none of the rifles entered into service before the end of World War II, with only 250 being made, and many others were never assembled. There were several problems with jamming and feed systems, which also delayed its testing.

The Type Hei (Hei being the Japanese character for C) is a prototype semi-automatic Japanese rifle. It was one of three experimental semi-automatic rifles commissioned for testing by the Imperial Japanese Army in 1932 and produced by Nippon Special Steel; the other two were the Type Kō and Type Otsu. It utilizes a toggle-lock action similar to the action seen on the experimental Pedersen Rifle. The rifle was offered with 5-round or 10-round magazine capacities, and could be loaded using Arisaka stripper clips. A variant with a 20-round magazine and full automatic fire capability was also trialed as a light machine gun during World War II. The Type Hei along with several other semi-automatic rifles submitted for evaluation by the Japanese military were tested in 1935, but none were found suitable for mass production and use.

The Type Kō prototype automatic rifle (Japanese: 試製自動小銃甲号 Shisei Jidō Shōjū Kō Gō) was a semi-automatic rifle developed by the Empire of Japan during the 1930s. Its design is heavily based on the Pedersen rifle.[3][4]

The Type Otsu (Japanese: 試製自動小銃乙, Shisei jidō shōjū otsu, lit. Experimental Automatic Rifle Otsu) was a Japanese prototype self-loading rifle, a copy of the Czechoslovakian ZH-29.

I have set them to a 1:35/1:72 ratio for easy printing, and the size comes from the data provided by the encyclopedia. You can adjust its size to any place by yourself.

Note: If using the model for 3D printing, model repairs may be needed