"How to" modify the 29$ Ruger Gunsight polymer mags to work in a ACIS

Ring

Rifle Instructor
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Minuteman
Dec 12, 2009
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Medina, Ohio
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the mags..
MAGAZINE, SCOUT RIFLE, 10-ROUND | Brownells

the work...
you will need a dremel and a sanding drum :)

modding them to work in a savage is different than a 700

in a savage, the front of the lips need cut back, or it will hit the bottom of the action.



in a remington, the front top needs cut down, or it will hit the feed ramp on the action



also, note with the polymer mags being thicker, the COL is limited to 2.82 max



the back and front needs to be sanded flat, remove the ribs





depending on your DBM, you may need to sand down the back sids as well to clear the stock



i took a "tad" more off than i needed, but no problems...


on the savage, you "may" need to bevel the top sides of the feed lips as well to clear the receiver.. not to much...




once done, it feeds quite well, and the plastic dont scratch your brass up...
i would probably run then at the range for 50 or so to make sure you dont have any feeding issues before using at a match..
 
I had attempted to make one work with my XC but had not found this thread. I had sanded down the sides and tried removing material from the feed lips. Looks like I removed the wrong material. I am going to have to try this method for sure.
 
To spare anyone the hassle, 10 round AICS mags do not work in a GSR. The GSR metal ones work in an AICS chassis, but not the reverse. I think it has to do with a latch over-stamped or something as I recall, but it took me about 15 minutes to yank that sucker out.