The Nightfall M4 90% from MISSION is a dart set with barrels of 90% Tungsten and is a very high quality dart set. The Nightfall M4 90% darts have a ring grip and a black tip. In short, a dart with quite a bit of grip on the barrel. These arrows are very suitable for all darters. This dart set comes in 3 weights; 22-24-26 grams. 22G = Barrel Length: 48.00mm, Barrel Width 7.60mm. 24G = Barrel Length: 50.50mm, Barrel Width 7.70mm. 24G = Barrel Length: 50.50mm, Barrel Width 8.00mm.