The pommel of the sword of the Messenger of Allah ﷺ was made of silver.
أخبرنا قتيبة قال حدثنا يزيد وهو ابن زريع عن هشام عن قتادة
كانت قبيعة سيف رسول الله ﷺ من فضة
No references are available.
[Sahih] Reported by Abu Dawud, no. 2584, from the hadith of Hisham with this same chain. See the previous hadith. It is also in Kubra, no. 9814.