Possible Clues:

• Does the gun get a tune put on the outside?
• A rubber will not remove it - it will put it on
• Lotion
• Ointment for a Frenchman round the bend?
• Application that's socially acceptable in a French chap
• Soothing salve
• A French gentleman obtains high-class ointment
• A European chap importing universal balm
• Oily substance that's spicy but not soft you ultimately absorbed
• A French chap will welcome universal balm