9mm ammo box 50 rounds

9mm Ammo Box — Built with BoxLoc

Expanding on the BoxLoc system, this version is designed specifically to store 50+ rounds of 9mm ammunition in a clean, modular format. It carries over the same smooth design language as my card boxes — rounded edges for comfort, a secure sliding hinge, and a crisp latch with an integrated finger lip for easy use.

Each ammo box includes removable inserts, making it simple to load, organize, and clean. The inserts fit snugly inside the box but can be lifted out when needed, giving you more flexibility for storage or transport. Like other BoxLoc designs, assembly is hardware-free — no tools, screws, or glue required.

Click below for the full Ammo Box Collection:

• 6/3/26 – New inserts with 60 and 72 round capacities have been added.
• 5/1/26 – New profile with updated line art added. – I will keep the original up for now in case someone prefers the original line art style.
• Update 12/5/25 – New v5 dropped.  This will replace all profiles.  This new version should vastly improve printability and aesthetics for the ammo box's bottom and lid as I have updated them to primarily use a chamfer then fillet to provide the smoothness I was going for while nearly eliminating all the overhang issues from using the original fillet only.  (Note: Other boxes will also get an updated version as soon as I am able to update the models and print them again.
• Update 11/25/25 – maker's remorse – a new v4 will replace the standard print profiles. I Just wasn't getting the same feels for v3… so executive decision was made to just keep the original fillets but reduce the size by 1mm.  From default settings it appears to only have 1 significant overhang at the bottom-most layers of the top and bottom parts vs the 2'ish from the original and still gives the rounded look/feel I set out to create.  I'll keep the v3 as an option for those that want it since overall, it still functions exactly the same and just move it to the bottom of the profiles
• Update 11/24/25 – I have added a new v3 Print Profile that has a modified version of the model with less aggressive outermost fillets as suggested by another user (@Scootworks).  Feel free to try that print profile and let me know in the comments or directly if you like it more or less than the original.

Highlights

• Holds 50+ rounds of 9mm ammunition
• Removable inserts for easy loading and organization
• Rounded edges for comfort and clean presentation
• Refined rear hinge for smooth, secure motion
• Crisp latch with integrated finger lip
• Stands on all sides for easier storage and transport
• Hardware-free assembly — no tools, screws, or glue needed
• Compact and durable — great for range use or storage
• Built on the BoxLoc platform — consistent look and modular compatibility across future boxes

Fun Bonus:
As a happy accident, the tray insert area happens to fit the CCI Blazer 9mm 50-round plastic tray near perfectly! So, if you’d rather skip printing my custom insert, you can simply drop that tray right into the box. To remove it, just use a flat tool to gently lift the plastic tray up and out.

Assembly Instructions

1. Join the lid and base
   • Align the lid’s hinge tabs with the grooves on the bottom of the base.
   • Gently slide the lid upward into the hinge slots.
   • Once you feel resistance, wiggle the hinge slightly along the pivot joint as you move it upward to help it seat properly.
   • Continue until the lid clicks securely into place and pivots smoothly.
2. Attach the front latch
   • Position the latch so the rounded side inserts into the lid at a slight angle.
   • Lightly squeeze the top of the latch to help it pop into place.
   • Make sure the flat side faces outward, so the finger lip curves toward the box.
   • While the latch will technically fit either way, this orientation provides the best comfort and clearance when opening or closing.
3. Ammo Tray Installation
   • Place the insert tray into the box and press firmly down on all four corners to lock the legs into place. You’ll know it’s fully seated when the top surface sits flush all the way around.
4. Ammo Tray Removal
   • Remove one round from a corner, then insert the end of a pencil (or similar tool) into the empty hole to gently pry the tray upward at an angle. Once it starts to lift, you can continue with the pencil or grab the exposed edges to fully remove the tray from the box.

NEW – Support & Commercial Use Memberships
Supporter and limited commercial license memberships are now available on Patreon @ (https://patreon.com/Layer51).