There are some very small spots of rust on the slide of the 6906 I picked up last weekend, just behind the front sight. Does anyone have any suggestions on a rust removal technique and how I can be sure it doesn't come back?

I use 0000 Steel wool and Eezox...works every time.

On Collecting and Shooting the Military Surplus Rifle (2006) - Surplusrifle.com they discuss an electrolysis method of removing rust without disturbing the unrusted finish of the rest of the firearm.

Bar Keepers friend , a tooth brush and a drop or 2 of breakfree mixed it together and brush on and scrub lightly,works wonders , You can get the bar keepers friend in the household cleaning aslie at walmart. Its made for stainless steel

Thanks very much for the suggestions!