GUU-5/P Carbine

The United States Advanced Air Force has made ad hoc upgrades to the GUU-5/P. The barrel and moderators were replaced with the longer 14.5-inch barrel with a 1-in-12 twist, but the weapon retained the original designation. With the change to M855 cartridges, it either received 1-in-7 twist barrel or complete upper receiver assembly replacement. The markings were removed and the weapon was redesignated. The new designation more accurately reflected the weapon's place in the U.S. Air Force Aerospace Equipment Type Designation System (AETDS). The weapons had initially been designated in the same format as aircraft guns, being placed in the GA category (GA designating an aircraft gun, with U meaning unit, representing a complete system and not part of a kit), followed by the /A suffix meaning the system was for aircraft. GUU is the "guns, miscellaneous personal equipment" category, and the /P suffix indicating personal equipment.
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===Weapon Attachments===
*ACOG Scope
*Red Dot Sight
*Grip
*Extened Mags
*Laser Sight
*SUSAT Scope