I like this pistol. Problems are as follows ; Zero calibration really sucks. The trigger pressure is over 4 kgs. Internal parts are too many. You will never be able to shoot the target properly until you use over 1,000 BB balls. Now, I ground off the front sight to make proper calibrartion. The trigger pressure became somwewhat lighter than initial. But this is a good pistol still. Actually I bought two pistols in fifteen days. One, I disassembled to make the trigger pressue light but failed. The other, I used real gun grease to make smooth firing, it worked.