Carried this Colt for around twenty years as either a back-up revolver to my S&W model 10 HB or as my "off duty." Replaced the pencil barrel with the "newer" heavier version. The barrel is blued while the rest of the gun has what remains of a Teflon finish (popular back in the day).
I also rounded off all the sharp edges of the hammer spur. Saved on clothing and skin.
Rich