Two Tone Remington barrel???

[Dfariswheel]

My new Remington 870 Police barrel is Two different shades of parkerizing.
From the breech to just behind the support ring, it's a dark shade of grey.
At the ring it abruptly changes to a noticeably lighter shade of grey.
I've never seen a Remington parkerize job like this.

Anyone else ever seen this??

 

[DML]

Yes, I've seen this many times. Many Parkerized barrels have three colors. Sometimes the barrel mounting ring is silver and/or purple.

I don't know a whole lot about the Parkerizing process, but I've been told by the folks that do that time, temperature and the type of steel all play a part in the finished product.

I have noticed that some barrels seem to be harder from the lug to the muzzle. This may be due to the brazing process. This could be why you see two tones.

Of course, I could be full of ...........

 

[sam3]

if yours has rifle sights it was always my understanding the diff. shades on the barrel occurs when they solder on the front sight.