This is a straight magazine addition to my Suomi KP/-31.
The construction is simple and needs only a rubber band for operation. Depending on the stiffness of the rubber band, it can be used symmetrically in both slots of the piston, or only in one slot. The magazine can be loaded with approximately a dozen of 9 mm bullets.
| mag-lower.stl | 197.3KB | |
| mag-parts.stl | 1.2MB | |
| mag-piston.stl | 270.0KB | |
| mag-upper.stl | 534.4KB |
