Magazine well conversion American 6.5 for Magpul

[BadMatrix]

Some rifles in the American series do not come with Magpul p-mags that have more capacity.
Is this a universal conversion across the line?

 

[recumbent]

All you have to do is go buy a higher capacity mag.
I would guess they do that so rifles can be shipped to states that restrict mag capacity.

 

[peyton]

It also depends on magazine release, does your rifle use the rotary or box magazine?