The ULTIMATE® Hop-up rubber with a hardness of 70° shore has been designed to give the best possible control of the BB in upgrades using springs ranging from M120 to M190.
For in-depth information on ULTIMATE® Upgrade Series, see catalogue.
Item in Stock
Unit 5 Virage Park,
Green Lane, Walsall Road,
WS11 0NH Company No. 6643770