This kit allows you to remove oxidation and gunk that builds up on your firearms when they haven't been cleaned after every use. If you buy used firearms, this kit is an essential tool for your gun care. This kit, along with Miltec-1 lubrication oil, gives you the freedom to restore pieces that have been abused to fine working condition. Just apply the cleaning paste to the affected area and wait three minutes before wiping it off with the cloth that comes in the kit. Make sure that you have removed all of the residue before you apply your lubrication.