[BillACP]

Looking at Kahr's website (TRUGLO FiO Night Sight) on the Truglo, it says:

• For K, MK, P, PM, T and TP models with new dovetail (produced after 2004). WILL NOT FIT P380 Models.

You may want to contact Kahr's tech department to confirm:
Contact Us
Kahr Arms | Auto-Ordnance Gun Tech. Support, Service / Repair

Attn: Return Dept.
105 Kahr Ave.
Greeley, PA 18425

TEL: 508-795-3919-ext.1 (9am - 4pm EST) | FAX: 570-685-2222
E-mail: [email protected]

If you're looking for something different / more, Galloway Precision offers specialized slide milling service for various sight mounting patterns to suit your needs:
Galloway Precision Tier One Slide Milling Service