Ultimate Sporter Magazine Problem

[Swoffer]

I have 2 mags that came with my US 510 and both have cracked on the clear plastic. The plastic is now in 4 quarters on each. I'm wondering if the new ones aren't as strong as the older ones with the yellow plastic? Has anyone had a similar issue?

[gdavison]

My grey ones are ok and get used equally as much as my yellow ones in all my AA.. i drop them in the drawer when finished and simply grab a couple random ones when shooting, so would guess by law of averages / randomness they all have around the same usage on them

could be worth contacting AA and asking if they want to see them to check them out ?

[Outandabout]

I am assuming they cracked when using them
Is the bolt catching the plastic as you operate it.
Could be the centre stud screw on the mag has been overtightened and snapping the plastic as you shoot.
Kevin

[TenMetrePeter]

Julia n lists yellow mag covers cheap as chips. S559-2A or 2B probably the ones you want