Designed specifically for use with the Umarex AirJavelin Arrow Gun Air Rifle. Straight Flight Technology: Arrows receive energy directly to the front of the arrow unlike conventional arrows, allowing the energy to drive the arrow straight without bending. Adapta-Point Technology: Umarex Arrows accept screw-in field tips and broadheads for ultimate adaptability when target practicing, 3D shooting, big game hunting, or small game hunting. High Pressure Shaft Technology: Allows arrows to withstand high pressures inside the carbon fiber shafts. Includes 50-grain field tips; Comes in a pack of 6.