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this is an insert that goes into a modified usgi magazine. All you really need to do is cut the feed lips off flush with the slot at the top of the magazine.
Blackdog machine sells springs for 25 round magazines that work in these.
once you insert the conversion kit into the top of the modified magazine body you can either hot glue them in place or let friction hold them in place.
these work with OK industries and colt magazines, I haven't tried any other manufacturers yet.
update: i just realized i uploaded the wrong files the first time, they should be good now.
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ar 22 pistol with p322 mag well
this is a ar22 that uses a cmmg designated 22 bolt carrier and 4.5" barrel and uses sig p322 20 or 25 round magazine.
requires a 8-32 1.5" screw for…
543
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DR-2C 22LR Drum
I've seen multiple people asking for these files as they were scrubbed from grabcad. I am not the original author of these files. The original cred…
538
14
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ar .22 magnum .17 hmr 35 round magazine
this is a step file for a 35 round magazine for AR15s chambered in .22 magnum or .17 hmr. They require the springs of AR22 25 round magazines to work…
375
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Alpha: RXM based PDW
this is a g45-19x style PDW. it uses ruger RXM internals. the mag release is a custom extended version that has to be printed. requires 17 round maga…
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