Mission Rebus Soft Tip Tungsten Darts – 90% Tungsten. Features: 90% Tungsten Barrels, 1 Set of Mission Flights, 1 Set of Mission Shafts with S-Lock rings, Point Protector. Mission Rebus Darts – Soft Tip – M1 – Rear Ring Grip – 20g-D9181 – Grip Level 4 on these.Mission Rebus Soft Tip Tungsten Darts – 90% Tungsten. Features: 90% Tungsten Barrels, 1 Set of Mission Flights, 1 Set of Mission Shafts with S-Lock rings, Point Protector. Mission Rebus Darts – Soft Tip – M1 – Rear Ring Grip – 18g-D9179 – Grip Level 4 on these.