Hi Alex,
A very nice Pesh Kabz you have there
I would also suggest Afghani origin for the fittings on your piece. I have quite different dagger, but the lower silver fitting on its scabbard seems to be similar to yours. My dagger is a strange combination: a Wootz khanjar blade, a Choora handle of well patinated ivory, and a set of scabbard fittings that are quite different in style to each other. The lower one is silver and upper one is made from German silver and has three nude (?) female (?) figures on it from one side. The scabbard is old and original to the dagger, as well as the handle, and all together it says "Afghani" to me. It seems that its creator have taken simply the spare parts that were available to him