One80 R2 Interchange Darts – Steel Tip – Re-silience- 25g. These barrels feature a combination of ring grips throughout the front-loaded barrel. The gold titanium barrels also sport 4 black painted rings in the centre, completing the dart with a VICE shaft and R2 flight.One80 R2 Interchange Darts – Steel Tip – Re-silience – 23g. These barrels feature a combination of ring grips throughout the front-loaded barrel. The gold titanium barrels also sport 4 black painted rings in the centre, completing the dart with a VICE shaft and R2 flight.