The 90499 Ruger LC9 Conversion Kit consists of a barrel in high-quality blued 9mm Luger, a slide assembly and a 7+1 magazine. Accompanied by a comprehensive instruction manual and detailed conversion instructions, this kit enables the possessor of an LC3801 or LC380CA to convert their .380 semi-automatic pistols to fire 9mm Luger ammunition with utmost safety and reliability. Please take note that this kit is not compatible with LCP.