| New Nambu M65/M66 | |
| Origin: | Japan |
| Type: | Submachine gun |
| Is Ranged: | YES |
| Service: | Japan Self-Defense Forces (Testing and Trials Only) |
| Used By: | Japan Self-Defense Forces |
| Designer: | Shin-Chuō Industries (Now Minebea) |
| Design Date: | 1965 |
| Manufacturer: | Shin-Chuō Industries |
| Number: | Prototypes Only |
| Variants: | M65, M66 |
| Weight: | 4.08 kg (M65) 3.96 kg (M66) |
| Length: | M65: 763mm (Stock Folded: 501mm) M66: 756mm (Stock Folded: 504mm) |
| Part Length: | 154mm (M65) 140mm (M66) |
| Cartridge: | 9×19mm Parabellum |
| Caliber: | 9mm |
| Action: | Blowback, Open-Bolt |
| Rate: | 550 RPM (M65) 465 RPM (M66) |
| Feed: | 30-Round Detachable Box Magazine |
| Sights: | Iron Sight |
The New Nambu M65/M66 (originally called the SCK-65/66) is a Japanese submachine gun manufactured in 1965 by Shin-Chuō Koygo Industries (Formerly Nambu Arms Manufacturing Company; now Minebea). It is blowback operated, and fires from an open bolt. It fires the 9×19mm Parabellum round, from 30 round box magazines. The firearm was only tested and produced under trials for the considered replacement of the aging M3 submachine gun that was supplied by the United States Military during the formation of the National Police Reserve after the war.[1]