[randyha]

Mag on the right came with the gun. Mag on the left came from Midway. What is the notch on the right side of the new mag (on left) from Midway?

 

[Don Glock]

for the ambi release on the gen4's

 

[randyha]

Thanks!

 

[__jb]

Mag on the right came with the gun. Mag on the left came from Midway. What is the notch on the right side of the new mag (on left) from Midway?

Welcome to the Glock.pro forums!

The GodFather is correct... as usual...

Glock only manufactures the new 4th generation Glock magazines because they fit all Glocks...

 

[TheLaw]

and they make for additional retention for mag holders!