AICS Mags for Grendels - Any updates?

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Using a plastic AICS magazine box for the 223 family. Open out the feed lips and the guide ribs just below them inside the box.

[ATTACH=CONFIG]7856[/ATTACH]

until the cartridge sits like this

[ATTACH=CONFIG]7857[/ATTACH]

Then you will need to adjust the lips at the forward end of the box to get the feed just right for your action and where the magazine box sits in relation to it.

Adam, what's your max coal? Thanks

Richard