Smart Part Ion Impulse eXTCy eNVy 14" 2 piece Stepped Paintball Gun Barrel + 4 Bore Chokes Set Fits Smart Parts Impulse, Ion or compatible threaded paintball markers! Features a 3-stage design for maximum accuracy & distance! 2-piece stepped aluminum barrel (press fitted to maintain perfect alignment) with 5 multi-sized chokes to guarantee the perfect bore size for any paint