Hoppe's # 9 is designed for guns. It won't hurt your finish.
Then why is the manual for my sig 220 insisting on only using oil to clean it?
Hoppe's # 9 is designed for guns. It won't hurt your finish.
Is Hoppe's 9 too harsh to use on blued finishes?
Then why is the manual for my sig 220 insisting on only using oil to clean it?