This upgrade attaches to the OSR2/SR6 and has a bottle and pump to feed the lube of your choice into the sleeve by pushing a button.
Designed by IsaacNewtongue this device can be added to any order
Not required to operate the OSR2 or SR6.
(Lube can leak around the sleeve depending on the angle of the device and viscosity of the lube, this is okay, just wipe with a damp rag)