This is the RFI-Issue Medium Rucksack that has been issued to tens of thousands of military personnel deployed to Afghanistan and other theaters of operation.  

• Top loading ruck with 3000 cubic inch volume.
• Accommodates up to a 60 pound load.
• Two exterior pockets for quick access to mission essential gear (top 10 x 5 x 2 and bottom 11 x 13 x 4)
• External frame is compatible with issued body armor, including hard armor rear plate.
• Loop side Velcro on top pocket for attaching hook side ID patches
• MOLLE webbing on the sides and rear pocket face for attaching additional pouches and gear
• Internal pockets can accommodate many items including SINCGARS and ASIP radios
• Pack weighs 5.75 lbs empty.

NSN's:

Complete Medium Rucksack Set, ACU Pattern, NSN 8465-01-592-7700.  Falls under LIN M48214 (which also includes the Medium Rucksack in MultiCam, NSN 8465-01-585-1512).

****Alternative, "non-standard" NSN for the complete set is 8465-01-F00-8677.  

Component NSNs:

Fabric Body Assembly, NSN 8465-01-592-7850

Waistbelt, NSN 8465-01-592-7708

Shoulder Straps, NSN 8465-01-592-7702