Empire Paintball BT Apex 3 in 1 Barrel, Black Left hook, right hook, dive bomb shots and long flat trajectory shots with a twist of the barrel 3 in 1 functionality, will work with Piranha/Spider, BT-4/A-5 and Custom/Model 98 Threads Hit previously untouchable targets with new curve features Adjustable ramp switch - choose the desired level of the curve Easy to clean