Seal Team

[browningautorifle]

I think that the UK curved mags were designed to be more reliable in that the slight curvature more followed the actual curvature of a dual stack of ammo.

Yes, that's the theory. UK mags had a wire spring that worked fine and CDN mags had a flat spring like Bren mags. That must have been because of the actuate curve as the 20 rd mags had a wire spring...