The Nightfall M2 90% from MISSION is a dart set with barrels of 90% Tungsten and is a very high quality dart set. The Nightfall M2 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 2 weights; 22-24 grams. 22G = Barrel Length: 49.00mm, Barrel Width 6.65mm. 24G = Barrel Length: 49.00mm, Barrel Width 6.95mm.