The Axiom 90% Blue Titanium M3 from MISSION is made with Blue Titanium accents. The Axiom M3 is a torpedo model with different ringed grip and incision grip. The grooves of these Mission darts have a blue titanium coating. This dart set comes in 3 weights; 21-23-25 grams. 21G = Barrel Length: 50.40mm, Barrel Width 7.10mm. 23G = Barrel Length: 50.40mm, Barrel Width 7.40mm. 25G = Barrel Length: 50.40mm, Barrel Width 7.60mm.