Get the edge on your enemy, with some Glow-In-The-Dark Tracer BB Pellets They provide a great alternative to your indoor/outdoor target shooting wars. Because they glow this makes them ideally suited for low light tactical gaming events, you can also see them leave a tracer trail as they fly through the air, but they work best with an add-on tracer unit on your gun. The 0.25g bb pellets Hear are an excellent weight ammo to use with sniper rifles or high power electric rifles and gas guns etc. a rough guide would be for example airsoft guns that shoot between 350 to 480 fps to use the 0.25g bbs. see our BB Pellet Buying Guide. for more about our tracer bb pellets.