Oleg,
Do you mean the Magazine safety? If you do, it's possible.
I was going to remove it on mine but decided against it because it provides a decent amount of downward force which is nice for shooting the empty magazine out.
If you really want to do it though, all you have to do is pull the gun completely apart and remove the spring (magazine safety spring) that causes the tension between the trigger rod and magazine safety. The mag safety works by just pushing the trigger rod down in the same position it's in when the disconnect tabs get pushed down during slide cycle.
I've taken mine apart and done a lot of changes on it for reliability ect, if you have any other questions.
Wayne