Dye Paintball DAM CQB Marker / Gun Switch from a Magazine Fed system to a Loader Fed system with the flip of the On-The-Fly Switch Semi-Auto, Three Round Burst, and Full Auto Firing Modes Picatinny Rails and gas-through frame standard Quick Release bolt system, built in Hyper regulator, clamping feedneck, and competition-style trigger frame. 12" UL1 Tactical Barrel, designed for Close Quarter Combat