Galaxy Spring Colt 25 $8, HFC 107 Gas Colt 25 $25, Marushin Derringer $50, Goblin Solo $85, Goblin Deuce $100 What is the best choice? The Galaxy springer is full metal and shoots about 220-240 FPS with .12 (190-200 FPS with .20) Max capacity is 7 BBs. The HFC gun is another Colt 25 and it shoots 250 FPS with .20 and has a max capacity of 10 BBs and is powered by green gas. The Marushin Derringer is another green gas gun that holds only 2 BBs, and shoots 250 FPS also, but is very cool to own. The Goblin guns are CO2 powered hand shotguns, and can be only shot once unless you have the Deuce model which can shoot only 2 times. 12 BBs are inside each bullet.