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AW Mag Tuning

Ubaderb

Sergeant of the Hide
Full Member
Minuteman
Oct 15, 2020
131
35
Anyone have any tips on how to tune an AW mag? Is there anything different to look at vs an AICS mag? The rifle is a Terminus Zeus in a KRG W-3. The two AW mags I have been messing with don't feed 100%. One mag will feed fine from 1#-8#, jam on 9#, and feed 10# fine as well. The one thing to note is it seems to only misfeed on rounds feeding from the left side, never the right. Does this tell anyone anything in particular to look for?
 
Same mags, same action, same issue. You need to open the feed lips. Do a little at a time, and test. You can use pliers, but a magazine adjustment tool, like the one MPA sells is better.