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A remix of the Menendez Double Stack Glock magazine design. More information can be learned in this video:
https://x.com/test_prototype/status/1779507006681858543
and the follow up video:
https://odysee.com/@Design-Prototype-Test:9/Svelte17-Finger-Groove---Textured:7
Good luck with the spring. You can find some on Ebay, but typically those aren't sufficiently heat treated and/or they have inferior metallurgy. They tend to deform (flatten) over time. If you use too many coils you will have reduced round capacity. If you use too few coils you will have weak feeding of the rounds. For the 23 round magazine 12 coils seems to be the sweet spot.
https://x.com/test_prototype/status/1779507006681858543
and the follow up video:
https://odysee.com/@Design-Prototype-Test:9/Svelte17-Finger-Groove---Textured:7
Good luck with the spring. You can find some on Ebay, but typically those aren't sufficiently heat treated and/or they have inferior metallurgy. They tend to deform (flatten) over time. If you use too many coils you will have reduced round capacity. If you use too few coils you will have weak feeding of the rounds. For the 23 round magazine 12 coils seems to be the sweet spot.