The screws of the boxes for 30M1 and 223 are compatible.
The screws of the boxes for 45ACP and 22LR are compatible.
I wanted easy modular storage according to my needs, to transport my ammo to the shooting range.
The case contains at least 52 rounds (when only the upper part is assembled with the lower part).
Each time you add a central part, you add 52 rounds.
With the screw system, you can assemble as many parts as you want / need.
I hope this object can be useful to someone other than me.
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