Trying to get to the bottom of my 2k9 issue of not being able to get it up to a proper velocity, I decided to make a quick measurement.
And they're is definitely a manufacturing prolblem.
I measured inside the body from whe the valve ring in a regular mag body is, to whe the field screw goes. It was about 2 3/4 inches.
With the 2k9 it's 3 inches.
Thats a huge difference with the small tolerances Automags work under.

Can anyone here with a 2k9 and a standard mag, checkmy measurements.
If those with proper functioning 2k9's report different numbers then I can only surmise that some of these we not milled correctly.