Hi,
i got an translation request also.
But, well, it is no weapon but a copper pot which came with one last year  

 .
I might understand that the left signs are a date, which should be around 1700. The others i couldnt identify at all.
It also seams that the signs might come from two different persons.
I would make a guess, that it comes from the Turk persian site  
 
Any idea is welcome.
best regards
Dirk