Originally Posted by tonyparson
Page 37 of you Glock manual under "Cleaning and Field stripping the pistol"
Note that the copper colored lubricant found on portions of the slide of brand new GLOCK pistols should not be removed as it will help to provide long term lubrication of the slide."
They said "lubricant"..............uh oh. .
And long term lubrication, That's twice in one paragraph