Firing pin question

[Fast1]

I have a Stevens 200 that I bought new in jan. of this year. It is a 243 . I want to change it to 223 win. I already ordered the 223 bolt face. But , do I also have to change the firing pin to a different one ?
I looked at Midway . They show one for 223 , but I just don't want to guess at this.

[GaCop]

No, all you will need is the bolt head and mag box/follower, unless your going single shot and then all that's needed is the BH.