Started today to polish the slide & barrel on my sd40 used Mothers Mag Wheel Polish, I was shocked at how well this product works with very little effort, all it take is some time and a Dremil polishing wheel, the slide is very shinny now not that brushed look, it may not be something others may like but to me it makes the pistol look 100 times better, going for the mirror finish look, wish I knew how to post pictures here to show you all the difference in look , just wanted to share.