Gen 2 MCK Features A Micro Conversion Kit (MCK) for a double/single action hammer-fired handgun! The new MCKCZP07/09GEN2 will feature all of the advantages of the Gen2 platform with an added feature of a lighter spring and upside down frame lock which will make disassembly easier and faster. Compatible with the CZ P-07 & P-09 models this new MCK will be suppressor friendly (suppressors up to 1.38" dia) and accommodate suppressor height sights up to 1.1" in dia. Gen 2 MCK Specifications Lighter spring and upside down frame lock Suppressor height sights New charging handle Top picatinny rail Fits CZ P-07 & P-09 models