Modular 100rnd ammo box for 223/5.56, 9mm, and others. 3D Printer File Image 1

Modular 100rnd ammo box for 223/5.56, 9mm, and others. 3D Printer File Image 2

Modular 100rnd ammo box for 223/5.56, 9mm, and others. 3D Printer File Image 3

Modular 100rnd ammo box for 223/5.56, 9mm, and others. 3D Printer File Image 4

Modular 100rnd ammo box for 223/5.56, 9mm, and others. 3D Printer File Image 5

Modular 100rnd ammo box for 223/5.56, 9mm, and others. 3D Printer File Image 6

Modular 100rnd ammo box for 223/5.56, 9mm, and others. 3D Printer File Image 7

Modular 100rnd ammo box for 223/5.56, 9mm, and others. 3D Printer File Image 8

Modular 100rnd ammo box for 223/5.56, 9mm, and others. 3D Printer File Image 9

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Modular 100rnd ammo box for 223/5.56, 9mm, and others. 3D Printer File Thumbnail 7

Modular 100rnd ammo box for 223/5.56, 9mm, and others.

Ctowns5

June 26, 2026

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Description

Ammo box to hold 100 223/5.56 cases. All screws are m3x30 unless you use the handle then those 2 should be m3x35, m3x40 for double handles.

March 2024, added a 9mm tray as requested so you could do half and half or use the same box for 9mm or 223.

July 2024, added a 223 tray that has case shaped holes that hold the cases at the shoulder rather than being cone shaped which allows them to rest on the bullet tips. Also added a 45ACP and 6.5 Grendel tray. Added a taller version of the box and tray for 308 family cartridges. The tall box uses the same lid and latch but the 308famtray can hold 243, 260, 7mm-08 and 308s. Enjoy and please post your makes.

August 2024, added a 12 ga tray for the tall box.

Sept 24, added a 30-30, 300blk and blank trays for both short and tall box to make it easier for people to remix their own trays.

Jan 25, added a 40 S&W tray

May 25 added a 41 mag tray

June 25 added Colt 45 tray

July-Aug 25 added a 17 hornet tray that holds 78 and a 200 rnd double decker 9mm tray system. Also added a creedmoor tray and an updated grendel tray with slightly looser holes and an optional handle.

Nov 25 added a 2mm taller lid and a 22lr tray.

Dec 25 added 2 new handle designs and a box bottom with a cut out for the bigger handles and a set of all 3 handles for the tall boxes. Any handle will work with any box but they fit best with the boxes they were designed for.

Feb 26 added a 5.7x28 tray

March 26 added 6.5 PRC tray "use with 2mm taller lid in tall box" and new "improved" 12 ga tray as well as a 7mm taller lid. Also added a 45-70 tray for tall box.

April 26 added a long action box (really tall box) aka LAbox and a 06fam tray. This tray holds 270win, 30-06 and any other 30-06 based cartridge with a similar shoulder position. YMMV

June 26 added an 8.6blk tray for tall box. it may need the 2mm taller lid, not sure.

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