it's a novelty kalis... meaning the handguard was added for no other reason than: 
 
a) to bolster sale (done by a lumad or christian vendor) 
b) the new owner's (most likely a foreigner) personal whim 
 
i don't see any reason why a moro would desicrate a kalis with a part of an "unclean" animal...
		 
		
		
		
		
		
		
		
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