USGI MOLLE II Assault Pack - No InsertThis MOLLE II Assault pack has a decent sized main compartment approx 27litres with a slightly smaller compartment on the front approx 7 litres. Plenty of adjustable strapping to keep things taught and stable. There is also no shortage of PALS webbing to add on any additional items to the outside of the pack. If you have the large MOLLE II rucksack, you can attach this assault pack to the front of it to make one seriously big pack if you have the legs