Our Cry Havoc Takedown Kit currently in use by the United States Air Force, utilizing the GAU-5A Aircrew Self Defense Weapon is the most compact and effective survival rifle for a downed Pilot. Used in the ACES II Ejection Seat Survival Kit, the GAU-5A has four magazines totaling 120 rounds, allowing a downed pilot enhanced protection. A QRB Kit equipped AR-15 Carbine or Pistol gives you the smallest possible package with NO drilling or modifications to you existing AR Platforms! Easy ONE HAND operation. You want compact - You got it!