Designed and developed after consultations with some of gel ball’s best techs the MK Steel Spring Retainer is suitable for all kinds of high stress, high speed builds, and it’s CNC machined right here in Brisbane! Featuring 16mm deep M5 thread and a quality thrust bearing plate. this spring retainer is a drop-in replacement for the standard Wells retainer and will fit all of MK Tactical Gearboxes made after 01 March 2021 as well as, all Hybrid92 boxes ever made.
