With a little modification, you can use a Ruger Polymer Gunsite Scout 3 round AICS style mag in an AICS bottom metal. I shorten the feed lips on my mags, as otherwise the rounds hit the feed ramp hard before they clear the lips. This is in my T3 TAC 308 with GRS Bifrost stock & AICS bottom metal conversion.
The slightly modified Ruger mag fits almost flush with the lip of base plate about 2mm off the stock. For comparison that 5rnd AICS mag is 160grams, the Ruger is 60grams & will accept up to 72mm COAL rounds. Perfect as a single shot base on the range or as a hunting mag.
The Ruger top area to the sides of the feed lips is rounded by default. I have filed it to a flat sided angle that will let it fit in to the T3 angled magazine port. Basically I copied the angle of the AICS mag. Fits & functions fine now. Though with the shortened feed lips when loaded with 3rnds, the first has a tendency to sit low at the rear & get
missed by the bolt, so I’ve added a small rubber buffer to the mag spring at the rear so it can’t go below level at full load with the bolt closed.
Enjoy
The slightly modified Ruger mag fits almost flush with the lip of base plate about 2mm off the stock. For comparison that 5rnd AICS mag is 160grams, the Ruger is 60grams & will accept up to 72mm COAL rounds. Perfect as a single shot base on the range or as a hunting mag.
The Ruger top area to the sides of the feed lips is rounded by default. I have filed it to a flat sided angle that will let it fit in to the T3 angled magazine port. Basically I copied the angle of the AICS mag. Fits & functions fine now. Though with the shortened feed lips when loaded with 3rnds, the first has a tendency to sit low at the rear & get
Enjoy