Mil-Comms Combo1 pack includes a .5 oz syringe of TW-25B grease and a 4 oz bottle of MC-25 cleaner TW-25B is the choice of nearly two dozen firearm manufacturers and customizers, as well as Armorers, pro shooters and most discriminating weapons enthusiasts. It is the unmistakable choice of the U.S. military's top operators. TW-25B Minimizes friction and prevents corrosion by treating metal pores on a microscopic level. The experts can't be wrong, but be your own judge. MC-25 Cleaner - degreaser is a non-toxic, environmentally-safe, highly-effective formula made to thoroughly free metal parts of any pre-existing, unwanted organic material. Harmless to wood, plastic, rubber or composite parts. It is the perfect choice as a pretreatment for all Mil-Comm lubricating products.