READ THE INSTRUCTIONS AND WARNINGS IN THIS MANUAL CAREFULLY BEFORE USING THIS FIREARM The NK-1 shotgun is compatible with MKA-1919 magazines.12 GAUGE SEMI AUTO SHOTGUN OWNER'S MANUAL mka1919.com.tr all of the instructions, safety guidelines and warnings carefully in this manual. MKA 1919 12 GAUGE SHOTGUN OWNER'S MANUAL read and fully understand all of the instructions, safety guidelines, and warnings carefully in this manual. Operating System: left and right handed operation, polymer carrying case. Page 11. GARAYSAR. MKA 1919 MATCH 12 GAUGE SEMI-AUTO SHOTGUN. Caliber:. Please read the instructions in this manual thoroughly in order to get to know 1919. Model: MKA 1919. Caliber: 12 Caliber. Operation mode: Semi Auto. MKA 1919 12 GAUGE SHOTGUN OWNER'S Read more about gauge, shotgun, manual and stevespages.com.