Legit or GM Concords? How can you even tell these days?

[chronicsneaker]

Everyone says the GM Concords are exactly the same as an authorized store drop from 2011.  Are they really that good these days? I just want a pair from an authorized dealer, but can even the biggest sneaker enthusiast spot the differences? What do you look for?  I'm trying to buy a pair of Concords and I want to make sure they are NOT GM pairs.  Take a look at these pictures, these were worn a few times (which I don't mind because I'm going to rock them anyways.) But see if you can help me figure out a way to tell if these are GM or Authorized/Legit...

I think this might be the most important picture.... The back:

Any more angles/pics I should request of these?  Also what are the market prices on pre-owned Cords (assuming they're legit from an authorized dealer)?

 

[sneakynoob]

These are legit for sure
What does GM stand for lol? I know it means b grades but never heard it before

 

[happycamper]

These are legit for sure
What does GM stand for lol? I know it means b grades but never heard it before

GM = Grey Market

 

[happycamper]

This looks legit to me.

 

[bcdagr8]

WELL THESE LOOK LEGIT FAM YOU DONT HAVE TO WORRY BOUT THE GM ON THESE

 

[f-lace]

Definitely legit