Pentagon UCB 2.0 Chest Bag Unboxing & Review YouTube Pentagon UCB 2.0 UNIVERSAL CHEST 7L olive 06 17046 2.0 Pentagon Universal Chest Bag UCB 2.0, Men's Fashion, Bags, Belt bags Pentagon UCB 2.0 UNIVERSAL CHEST 7L olive 06 17046 2.0 Pentagon UCB 2.0 UNIVERSAL CHEST 7L olive 06 17046 2.0. The Pentagon UCB 2. 0 is a versatile and compact 7L tactical chest bag designed for quick access storage in urban and outdoor environments. Constructed from durable 500D nylon, it offers excellent resistance to wear and tear. It features a spacious main compartment with inner organization pockets, plus a hidden rear compartment that is CCW compatible for discreet carry. The external MOLLE system allows modular attachment of additional gear or accessories. Worn as a sling or front chest pack, the UCB 2. 0 delivers fast access, ergonomic fit, and tactical functionality ideal for everyday carry, travel, or duty use.