Safety screw on 590 Shockwave

[black1970]

What bit is needed to remove the safety button on a 590 Shockwave? Looks odd. Thank in advance.

 

[Jmm14534]

Take a look at this video.

 

[John A.]

Yeah, it's a tamper resistant screw.

It can be done with a straight screwdriver. But it's not gonna be easy.

Some people will use a dremel and cutoff wheel to make a long groove that the screwdriver will fit into better. That is, if you're not going to be re-using the safety lever.