The Tippmann A5 was my first paintball gun. Rock solid performance is the standard from tippmann. The A5 has tippmann cyclone feed system so you never have to worry about batteries in your hopper again. The Tippmann cyclone feed uses the excess air from firing to turn a cyclone feed system and feed paint into the marker. The A5 will run off of co2 or compressed air. While the A5 is heavier than the new tournament paintball guns, you have alot more upgrade options and can turn your a5 into a tactical beast with some pretty realistic looks. With the new low price of $179, it's tough to beat the a5 on performance and looks.