| Model 91/98/23 carbine | |
|---|---|
 Model 91/98/23 and Model 91/98/25 carbines (Kbk wz. 91/98/23, Kbk wz. 91/98/25) | |
| Type | Bolt action carbine |
| Place of origin | Russian Empire Soviet Union Poland |
| Service history | |
| In service | 1923-1945 |
| Used by | Poland Germany (captured pieces) |
| Wars | Invasion of Poland, World War II |
| Production history | |
| Designed | February 1920 |
| Manufacturer | Centralna Składnica Broni ARMA |
| Produced | 1924-1927 |
| No. built | ca. 77,000 |
| Variants | see Variants |
| Specifications | |
| Mass | 3.7 kg (8.2 lb) |
| Length | 100 cm (39 in) |
| Barrel length | 60 cm (24 in) |
| Cartridge | 7.92×57mm Mauser |
| Action | Bolt action |
| Rate of fire | 10 rounds per minute |
| Muzzle velocity | 845 m/s (2,770 ft/s) |
| Sights | Rear: ladder, graduated from 300 m to 1,200 m Front: hooded fixed post (drift adjustable) |
The Model 91/98/23 carbine (Karabinek wz. 1891/1898/1923) often shortened to kbk wz. 91/98/23, and its variants wz. 91/98/25 and wz. 91/98/26, were a Polish modification of the Mosin–Nagant M1891 rifle to carbine form. The Mosin rifle was shortened and converted to use the 7.92×57mm Mauser cartridge.
The carbine was introduced as an interim weapon in the 1920s but continued in use until Poland fell at the start of World War II. Thereafter some were used by Germany.