Polymer / lightweight 300 PRC magazines AICS

[AFmaryland]

I see there are some metal AICS magazines for the 300 PRC but when building a light hunting rifle I'd rather shed some weight if possible.

Any suggestions on a lightweight option for the 300 PRC magazine?

 

[Joefrazell]

Don't think they're making them. I'd go Hawkins m5 hunter if you want something for hunting/lightweight