Which Extended Slide Stop for my 2-pin G19???

[Tex78]

I am looking at getting one of the OEM extended slide stops. When looking I see part numbers 3796 and 3797. The descriptions leave me a little blank as to which one I need. I have a G19C with a two-pin 3rd gen frame.

Thanks

Tex78

[trick pony]

the glock part no. on my factory ext. slide stop for my 19 is7432-2