it's easy to defeat the safty under the takedown lever on the right side the thing that blocks the lever with the mag in {the mag safty}, it comes out just like the mag release under the slide release there's a little hole where you can push the saftey while you turn the screw to lock down the spring then the thing slides out of the pistol. to take the slide release off turn the take down lever stright down, wiggle it while pulling and it will slide out of the pistol then the slide release will just kinda fall off
before you take the pistol apart. with the slide off and the mag out look down into the mag opening at the very top of the trigger and the mag safty, it justs blocks the top of the trigger on the right from moving up, you just have to file the corner. push the mag safty over then pull the trigger you'll see where it needs filing
It's easer than trying to make since of my writing. the part was shoft and filed easy