Gun Features: "Matched & Balanced" paintball marker / loader kit 4 Electronic fire modes NXL full auto PSP Ramp 3 ball burst Semi-auto Speed dial for quickly adjusting marker max rate of fire Replaceable chip for future programming changes & upgrades 18 bps Feed / Fire rate Gas Type: Nitrogen / Compressed air preferred VL Force Features: 6 Blade flexible "jam free" force feed paddle for fewer jams & less breaks Continuous force feed for faster out of the gate speed 2 piece body design for easy cleaning & battery replacement