Gen 2 MCK Features CAA USA is proud to bring 5 new Glock models to the world-famous MCK (Micro Conversion Kit) line! Compatible with the Gens 3 4 and 5 of the Glock Models 29/29SF/30/30SF and 30S. The MCK29/30GEN2 comes with 3 charging handles to accommodate suppressor height sights as well as the thinner slide of the Glock 30S. An improved frame lock and spring makes disassembly easier and faster! Gen 2 MCK Specifications 3 Charging handles Improved frame lock and spring Accommodates suppressor height sights Fits Glock Models 29/29SF/30/30SF and 30S Picatinny rail