MTM 200 ROUND AMMO BOX 9MM/380 ACP 200 RD. This 200 Series ammo box from MTM features heavy-duty polypropylene construction and a snap-latch design to keep ammo organized and secure during travel or at the range. The stackable design helps reduce base at home and helps you stay organized. Each case includes a load label for easy identification. All MTM Case-Gard products are made in the USA.