Bren Magazines

Four new to me magazines. Any info welcome. I read somewhere here I believe that MA is Lithgow in Australia. Fonts are different, two being small and one large. Thats the only marking I understand. The one magazine has an odd lifter that is made lighter and in two pieces.

A in a circle

https://www.milsurps.com/images/impo.../KeJ2TYu-1.jpg

https://www.milsurps.com/images/impo.../tVFnMEG-1.jpg

https://www.milsurps.com/images/impo.../NtzUGIx-1.jpg

https://www.milsurps.com/images/impo.../V2N2tZP-1.jpg

https://www.milsurps.com/images/impo.../VwcMMUt-1.jpg

https://www.milsurps.com/images/impo.../9NgLH0d-1.jpg

https://www.milsurps.com/images/impo.../4umNQ2C-1.jpg

MA '42

https://www.milsurps.com/images/impo.../P5UsDca-1.jpg

https://www.milsurps.com/images/impo.../8SnfTKd-1.jpg

https://www.milsurps.com/images/impo.../oNDqsvQ-1.jpg

https://www.milsurps.com/images/impo.../JRO8KQR-1.jpg

https://www.milsurps.com/images/impo.../Ur4S6pA-1.jpg

MA I

https://www.milsurps.com/images/impo.../kZNl69N-1.jpg

https://www.milsurps.com/images/impo.../6ozgFXm-1.jpg

https://www.milsurps.com/images/impo.../jXrtR4F-1.jpg

https://www.milsurps.com/images/impo.../UPj1fFA-1.jpg

https://www.milsurps.com/images/impo.../qS1Qcu6-1.jpg

MA MKII

https://www.milsurps.com/images/impo.../NmHfEfs-1.jpg

https://www.milsurps.com/images/impo.../jS8xfv3-1.jpg

https://www.milsurps.com/images/impo.../RVc8nu3-1.jpg

https://www.milsurps.com/images/impo.../fNBYamV-1.jpg

https://www.milsurps.com/images/impo.../oYfBSiZ-1.jpg

Looks like I might have one of the early MK I magazines that was upgraded to MK II during the war with a new baseplate. This is the one with the weird lifter. Is that why it has a weird lifter or is that an economy type war measure manufacture?

A in circle = Austin Motor Company, England.