Hi,
Cheers for the comments.
So far, i've only seen the 43 rd 'short' mag (lo-cap) - as shown on the photos, a 60 rd 'short' mag (mid-cap), and a 240 rd 'long' mag (hi-cap).
I like the 'long' mags, but dislike hi-caps. I wouldn't mind having a 'longer' lo-cap or mid-cap. I suppose i'll have to keep looking.
:-)
Slim.