AR15/M4 Extended Mag Release
thingiverse
AR15 Magazine release for Lancer Tactical "LANCER TACTICAL M4 RIS EVO" with screw hole in the button. That's what my friends AR15 has. Resolution is just right if it doesn't fit, use 99% scale. I recommend a higher infill due the strength of the lever of the button. I used 15 to 20%. and worked fine.
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