Hi Raja Muda,
I suddenly remembered that I have a book 'Repertory of Museums of Arms and Military History', Published in Copenhagen 1960. Under Switzerland, Geneva I found only one museum with arms and armour: Musée d'Art et d'Histoire, Rue Charles Galland. I guess that the museum will still be on the same adress, but you better ask.
About the collections: The collections originate from the cantonal arsenal of Geneva, and cover about 8200 pieces: prehistoric, French-romantic, and mediaval subjects. Arms from bronze and iron ages, armour from 16th century; pistols from Nuremberg, Augsburg and Strasburg from 15th, 16th and 17th centuries; pole arms etc. from 15th, 16th and 17th centuries. Fire arms, colours etc.
Notice that museums are usually closed for two hours during lunchtime. Have a nice trip.
Here is a link you can try.
http://www.swissart.net/e/guide/inde...ms_geneva.php3
Jens