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308 10 Round Magnetic Storage Box

308 10 Round Magnetic Storage Box preview

Files (4)

Magnetic_Field_Box_10_Bottom_Insert.stl.stl
STL
81.5 KBPrimary file
Magnetic_Field_Box_10_Lid.stl.stl
STL
98.5 KB
Magnetic_Field_Box_10_Main_Body.stl.stl
STL
119.2 KB
Magnetic_Field_Box_10_Top_Insert.stl.stl
STL
96.2 KB

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PETG filamentAmazon · Affiliate linkAmazon product page for 1.75 mm PETG; confirm colour, spool size, print temperature, seller, and delivery region.Check price at Amazon
ASA filamentAmazon · Affiliate linkAmazon product page for 1.75 mm ASA; use an enclosure and suitable ventilation, and confirm seller and regional availability.Check price at Amazon

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CC BY
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The file license permits commercial reuse, subject to any applicable attribution or share-alike terms. License status does not verify vehicle fitment, OEM rights, design patents, or safety.

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Michael Chen
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Description

Storage for 10 rounds of 308 or similar cartridges with magnetic closure. The Slot in the front allows you to make labels for your custom loads or tear off the end of a box from factory ammo an insert it. Bullets are oriented down with a shelf that holds the neck to prevent any tip deformation. Magnets are 5/16 which may be sources from Harbor Freight or Amazon easily. As always use at your own risk, no warranty implied, and I ain't taking responsibility for nothing but the glory. Larger versions may be found in our Etsy store. Links listed below: 20 Round Version - https://pewpewpackout.etsy.com/listing/4455050538/308-20-round-magnetic-storage-box-stl 40 Round Version - https://pewpewpackout.etsy.com/listing/4455051948/308-40-round-magnetic-storage-box-stl When using 5% infill and 4 to 6 walls are all that are required to make a pretty beefy case.

Published Feb 13, 2026Updated Oct 30, 2026

Originally published on thingiverse.com · License: CC BY

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