The Karabinek KP-32 was a prototype of a

bolt-action Bolt-action is a type of manual firearm action that is operated by ''directly'' manipulating the bolt via a bolt handle, which is most commonly placed on the right-hand side of the weapon (as most users are right-handed). Most bolt-action ...

repeating carbine. Designed in 1932 by as his academic thesis at the Faculty of Engineering of Warsaw University of Technology, it was a thorough modification of the

Karabinek wz. 1929 The Karabinek wz.29 (Kbk wz.29; Polish: carbine model 29) was a Polish bolt-action short rifle based on the German Kar98AZ. Identifying attributes include a 98/05 style mast bayonet lug ending directly beneath the front sight and winged protectiv ...

carbine, itself based on the German Mauser rifle. Its main advantage was simplification and reduced cost. Several prototypes were made by the

Państwowa Fabryka Karabinów Państwowa Fabryka Karabinów ( en, State Rifle Factory, often abbreviated FK) was a Polish arms manufacturer active between the two World Wars. Founded in 1919 as the successor to the pre-World War I Gerlach i Pulst company, Fabryka Karabinów ...

works in Warsaw. The Polish Army initially ordered 66 pieces for testing, but eventually dismissed the design and the project was scrapped. However, Maroszek's efforts did not go to waste: he soon scaled up his bolt action to develop

Wz. 35 anti-tank rifle The Model 35 antitank rifle (''Karabin przeciwpancerny wzór 35'', abbreviated "''kb ppanc wz. 35''") was a Polish 7.9 mm anti-tank rifle used by the Polish Army during the 1939 Invasion of Poland. It was designated model 35 for its desi ...

, and it might also have influenced the design of PTRD-41.

References

Bolt-action rifles of Poland 7.92×57mm Mauser rifles {{rifle-stub