Compatible with the Canik TTI Combat handgun" the Canik TTI Combat 9mm 18-Round Magazine with +3 Extension is a TP9-series magazine featuring steel construction with a corrosion-resistant finish for superior durability and reliable performance in any shooting application. Specifications for Canik Magazine, 9MM, 21 Rounds 18Rd Mag with +3 Extension, Fits TTI Combat, Full Size, Black With +3 Bronze Extension: Manufacturer: Canik Cartridge: 9mm Luger Magazine Capacity: 21 Round Color: Black Finish: Black Additional Features: Canik TTI, Magazine Number of Rounds: 21 Handle Color: Black Features of Canik Magazine, 9MM, 21 Rounds 18Rd Mag with +3 Extension, Fits TTI Combat, Full Size, Black With +3 Bronze Extension: Durable Polymer Follower Package Contents: Canik Magazine, 9MM, 21 Rounds 18Rd Mag with +3 Extension, Fits TTI Combat, Full Size, Black With +3 Bronze Extension