Milwaukee Grease Gun Repair - Replacing the Coupler (Milwaukee Part # 42-90-0065) - YouTube
OxRock Milwaukee Grease Gun Adapter.. Suits Milwaukee and Dewalt - Trade West
GREASE COUPLER, CLIP ON, T/S MILWAUKEE GREASE GUN - Prime Supplies
Milwaukee M18 49-16-2648 Right Angle Grease Coupler, For Use With M18 2646-20 2-Speed Cordless Grease Gun, 1/8 in NPT, 9/16 in Fitting Wrench, 10000 psi, Metal