Mounting B-Square on Beretta 390?

[gatrapper]

How do I go about it or should I just have a gunsmith put it on?

It just says remove 1 pin from my shotgun and attach the mount.

Anyone have much experience with this?  Any how to pictures??

[WyoHunter]

Just pop out the pin and attach. You don't need a gunsmith to do this.

[gatrapper]

How do I go about popping the pin out?

[savduck]

ice pick. 10 penny nail. tap it and it will come out.