I owned a K100 Mk7, P11 and K22S. They are quality guns. Had a chance to shoot the L40, L45 and the 10mm too.The rotating barel lock-up reduces the muzzle flip, turning it more into a push. I still have the 22LR cal. model. Now I am waiting for the striker-fire model (Q100), which was to get to the market last October but was delayed due to a lack of production capacity (the factory is busy with the K100 contracts). I got my hands on one of their prototypes last August. The trigger was very smooth. Was told it can be tuned very fine. Last Friday I was told I might get a Q100 in late January.