Разница есть.
Тут хорошо написано:
http://www.olive-drab.com/od_soldiers_g ... e_pack.php

MOLLE II Equipment

Field user feedback on the original MOLLE led to modified designs to some of the MOLLE components. With these changes, MOLLE became MOLLE II. Specific changes included:
Eliminated the quick-release frame integrated into the load bearing vest (LBV)
The probe and socket mechanism changed to a quick-release mechanism for frame waist belt, now permanently-mounted to the frame
MOLLE II permanently attached waistbelt comes in one size (Same NSN as the MOLLE size small waistbelt, NSN 8465-01-465-2109)
MOLLE LBV redesigned to eliminate the molded waistbelt, called the MOLLE II Fighting Load Carrier (FLC) (Same NSN as the MOLLE LBV. NSN 8465-01-465-2056)
MOLLE Utility Belt (NSN 8465-01-465-2082) eliminated by building the functionality into the vest
MOLLE butt pack replaced by the MOLLE II waist pack (Same NSN)
MOLLE II Pouch, Canteen Carrier/Utility was introduced (NSN 8465-01-484-0450)
MOLLE 30rd Single Magazine Pocket eliminated (NSN 8465-01-465-2079)

Тут есть фото, в разделе INDIVIDUAL EQUIPMENT, LAND WARFARE I
LOAD BEARING GEAR

http://www.special-warfare.net/data_base/index.html