Maskingpistol 18

The Maskingpistol 18 is a compact submachine gun, designed for use by law enforcement, special forces and close protection teams, development started in 2016 when the several specialist units expressed their desire to replace their current submachine guns with one chambered in the newly developed 7.5x27mm Ku18 cartridge, which offers better performance against armored targets. The Air Force also expressed interest in a model with a folding pistol grip for use as an aircrew survival weapon, this interest led to the development of the B/D models.

Maskingpistol 18A
The MskP.18A is the standard variant adopted by the Ringerike armed forces in several configurations and chambered in 7.5x27mm Ku18, ranging from a standard SMG to a concealable sub-compact variant,

Maskingpistol 18B
The MskP.18B is the export model, marketed in several configurations, ranging from a standard SMG to a concealable sub-compact variant and chambered in, it is also produced in a semi-automatic only variant for sale on civilian markets.

Maskingpistol 18C/D Aircrew Survival Weapon
The MskP 18C is a compact Aircrew survival weapon chambered in 7.5x27mm Ku18, featuring a folding pistol grip and a series of lightening cuts to make it as light and compact as possible without degrading performance, it is designed to fit inside the survival kit attached to a pilots ejector seat, giving them a viable weapon for hunting and self defense, an export version is also produced which is designated as the MskP.18D

Users

 *  Poja: MskP.18B and the MskP.18D are in service as the MP77A1 and the MP77A2 with the Pojački military. The MP77A2 is the standard aircrew survival weapon on all Pojački fixed-wing aircraft and it retains the same chambering of 7.5x27mm Ku18 due to its superior, ballistic performance over 9x19mm.  The M77A1, however, is chambered in 9x19mm.  Both weapons were adopted in 2019.
 * Ringerike: MskP.18A/C In Service with all branches of the Ringerike Armed Forces