STACK-50.1 — S.T.A.C.K. (Smart Tray Ammo-Can Kit) Modular Organizer for 50 Cal Ammo Cans

All 50.1 Models are 25mm ~1in high. For taller pre-scaled models check out my 50.2, 50.3, and 50.4 versions. All are stackable together for whatever combination of tools or parts you need to store!

Transform your standard 50 cal ammo can (M2A1) into a professional, high-efficiency storage system with STACK-50, part of the S.T.A.C.K. — Smart Tray Ammo-Can Kit series. This 3D-printed modular tray system is designed to maximize organization, accessibility, and vertical storage inside any metal ammo can.

Each tray is lightweight, durable, and stackable, allowing you to customize your ammo can layout for tools, EDC gear, hardware, gunsmithing parts, or field repair kits.

What Is STACK-50?

STACK-50™ is a precision-fit, stackable organizer insert engineered specifically for the iconic 50 cal ammo can. As part of the S.T.A.C.K. (Smart Tray Ammo-Can Kit) lineup, this system offers a tactical, modular approach to tool and gear organization.

Key Features

• Perfect Fit for 50 Cal Ammo Cans: Engineered for a smooth, stable drop-in fit inside standard M2A1 cans.
• Part of the S.T.A.C.K. System: Smart Tray Ammo-Can Kit—a modular ecosystem designed for rugged organization.
• Modular & Stackable: Mix tray heights to create a personalized vertical layout.
• Lightweight & Durable: Optimized geometry balances strength and minimal filament use.
• Multiple Tray Depths: Choose the right height for bits, tools, components, or bulky gear.
• No Supports Needed: Clean FDM-friendly design prints quickly and easily.
• Enhanced Organization: Ideal for tactical gear, tools, gunsmithing, EDC kits, and vehicle storage.

Why Choose STACK-50™?

This organizer turns a tough, weather-resistant ammo can into a professional-grade modular storage system. Perfect for makers, gun owners, mechanics, survivalists, or anyone who wants efficient, customizable storage inside a rugged can they already trust.

Recommended Print Settings

• Material: PLA, PETG, or ABS
• Layer Height: 0.2 mm
• Walls/Perimeters: 3
• Infill: 15–25% (Gyroid or Grid recommended)
• Supports: None required

Ideal Uses

• Tool storage
• Gunsmithing kits
• Range box setups
• Survival gear organization
• Vehicle emergency kits
• Electronics & small parts
• EDC and field repair kits

Notes

• Designed for authentic military ammo cans; surplus cans vary slightly. Scaling 1–3% may improve fit in out-of-spec cans.
• Compatible with other S.T.A.C.K. system trays and accessories (future expansions).