Part Number for Remington XS Front Sight Ramp?

[0faustus0]

So I ordered an 870 Police barrel with XS low profile rifle sights, and the barrel arrived a couple of weeks ago.

F249630AS : BBL 12/18.5 IC RS XS
https://store.onlinecamp.com/en/replacement-parts-oem/remington/shotguns/model-870/3-barrel-assembly/f249630as-bbl-12-18-5-ic-rs-xs.html

After shooting this setup, I really like it … and I now want to put these XS sights on my single shot H&R Pardner. I did a bit of research and it seems the following two Remington parts are the front and rear sight:

F114600 : REAR SIGHT ASSEM XS SIGHTS
https://store.onlinecamp.com/en/replacement-parts-oem/remington/shotguns/model-870/f114600-rear-sight-assem-xs-sights.html


F202701 : FRONT SIGHT XS (NON TRITUM DOT) (DAY SIGHTS)
https://store.onlinecamp.com/en/replacement-parts-oem/remington/shotguns/model-870/30-front-sight/f202701-front-sight-xs-non-tritum-dot-day-sights.html

However, I can’t figure out what the part number the ramp for the front sight is …
The front sight ramp is lower than the one for normal rifle sights or for ghost ring sights.

Would anybody know the Remington part number?

Any help would be appreciated. Thanks.