Had a similar philippine made pistol several years ago. It was a beautiful piece purchased from a guy named Iggy from Florida. The problem was that it got only one shot per fill - and the fill was the same adapter and process as filling a proper multi-shot-Co 2 pistol. sent it back - but it sure was pretty.
while in Cebu a few years ago I visited the "workshop" of such and artist. On a brick walk adjacent to his corner home on a narrow street, two guys were working with only the most basic hand tools - were talking a Yankee screwdriver, hammer and chisle etc.- with which they fashioned a a complete, working and visually perfect airgun. It was stunning to see what determined effort combined with knowledge and skill can do. Hats off.