I know that happens with the locals, but we have to be careful because it is illegal for foreigners to possess firearms, and none of us want to be locked up in a Phils jail or even just give someone an excuse for extortion.
A lot of the guns the locals have are actually home made and are likely to blow up in their faces if used more than once.
A BB gun is ok though, and you can get some very realistic-looking pistol types, good enough to stick in yer holster.
Just hope your opponent doesn't have a .357 Magnum.
(One of which I DID used to own in THIS country when it was legal - for shooting club).