Just got a new Axis in 308 and was thinking Id like to have a 10rd magazine. I know it has been done before so I wont bore anyone with the gory details. My plan is to take a G3 magazine(steel mags can be had for around $5)which is the same width, cut it down and tig weld the Axis magazine to it. Then I will use the spring from the G3 mag (cut down slightly) and either machine a latch for it or take the floorplate from the axis magazine and use it to position and retain the box mag. I will be taking pictures to document the modification if anyone is interested.