Magpul PMAG 20 .308/7.62 NATO mags

I have 4 of these that I received in error. (I bought AR15 mags) 

For sale or trade for either AR15 mags or Glock 17 , 9mm mags.

Renfrew ontario,  No shipping.

Description from Cabalas site:

• 5 round capacity
• Constant-curve body and anti-tilt follower
• Lighter than standard-issue steel magazines

Lightweight and highly reliable, the Magpul® PMAG G3 Magazine features a 5-round capacity, a constant-curve body and an anti-tilt follower for dependable service. Less than half the weight of standard-issue steel magazines