As far as the gifts is harmful to me irrespective of the person I will be grateful

I wonder what you mean with the sentence above. You are happy with a harmful gift.
Do people give weapons for a gift?

Gifts are easily given or bought it says nithing about the relatiinship. To me it sounds more like buying affection or loyalty.

The present your father gave you is indeed special.

All the best to you and cherish this great memory.