Usmc main pack frame They are different frames for different packs. main pouch. The dry weight of the Main Pack shall not exceed 170 ounces. 95 Grade B: $99. No bla, bla, bla. NSN: 8465-01-598-7693. This USMC ILBE Marpat Pack features zippers on each side to allow quick access to large compartment from the side, or you can enter from the drawstring top. Please use the following quality guide below to understand the differences in our qualities: The Marine Corps issue FILBE backpack system has a more conventional internal frame with a large quantity of structural back padding and support. ILBE Second Generation Main Pack with internal frame, great for upgrading your ILBE damaged bag pack. Quick View. dychmkhxsknqpopjoekzjndokjnfbxhtvlburjsatybwnkqaxvfnytosmmpxqddzrrufvvsvo