This is sold in a 6 pack and a 20 round box.  The Drone Buster allows the 556x45 user to protect themselves from kamikaze drones. Each round hurls 6 pellets at over 2,400 FPS at an attacking drone. Maximum range of 40 yards. Also excellent for CQB work.  Dronebuster Usage: It is suggested to have a magazine dedicated to DroneBusters. Every 5th round needs to be a jacketed round to keep the barrel clear. The tubing melts at 450 degrees (F). If using a weapon in high temperature conditions, keep the chamber empty until preparing to engage. Be sure to read our shipping policy.