308 10 Round Magnetic Storage Box - image

Files (4)

Magnetic_Field_Box_10_Bottom_Insert.stl.stl

STL

81.5 KB

Magnetic_Field_Box_10_Main_Body.stl.stl

STL

119.2 KB

Magnetic_Field_Box_10_Lid.stl.stl

STL

98.5 KB

Magnetic_Field_Box_10_Top_Insert.stl.stl

STL

96.2 KB

Print guidance estimate

Uses saved filament metadata

Print cost & setup estimate

Saved filament data plus editable planning inputs for cost and time.

4 model files

Recommended kit

50g

Based on 10% main infill across listed model files

Material cost

$1.20

Filament only at roughly $24/kg PETG / ASA

Print time

2.0h saved / 1.4h–2.4h estimate

Uses 70 mm/s, 0.2 mm layers; verify supports in slicer

Saved setup guidance is used for material, infill, support, and per-file recommendation text; editable numbers are planning estimates only.

Reference shelf

Recommended filament for this print

Product references matched to the published material guidance. Confirm diameter, heat resistance, colour, and printer compatibility.

Referenced item	What to verify	Price & availability
PETG filamentAmazon · Affiliate link	Amazon product page for 1.75 mm PETG; confirm colour, spool size, print temperature, seller, and delivery region.	Check price at Amazon
ASA filamentAmazon · Affiliate link	Amazon product page for 1.75 mm ASA; use an enclosure and suitable ventilation, and confirm seller and regional availability.	Check price at Amazon

Affiliate disclosure: if you buy through an eligible link, 3DPrintedCarPart may earn a commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Confirm product specifications, compatibility, seller terms, and vehicle safety before ordering or using anything. Amazon may redirect you to a nearby supported store; otherwise the original Amazon.com page remains available.

Unsure which one fits? Read the automotive filament guide.

Interior

308 10 Round Magnetic Storage Box

0 downloads164 views0 quality score

Print this part

Use the part context as a starting point, then confirm geometry-dependent values in your slicer.

Files

4 hosted model files

STL

Material start

PETG or ASA

Saved part guidance

Strength start

5% infill with 4 to 6 walls for a sturdy case

Saved part guidance

Orientation / supports

Likely not needed

Exact totals

50 g · 2 hours

Saved estimate

Vehicle exposure

Cabin/interior use; avoid high-heat zones

Open the STL, 3MF, or OBJ model in your slicer before printing. Exact grams, time, and final support placement come from the actual slice. Test-fit and heat-check the part before installing it in a vehicle.

License & use

CC BY

Commercial use allowed

Attribution required

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.

Shared by

Michael Chen

Verified

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 Aug 9, 2026

Originally published on thingiverse.com · License: CC BY