Airborne Charging Handle (ACH) - 5.563D machined from aircraft grade 7075 T6 aluminum Ambidextrous design Levers are dual contoured The Airborne Charging Handle is 3D machined from a solid block of aircraft grade 7075 T6 aluminum. Its ambidextrous design allows for seamless operation from either side of the weapon. The levers are dual contoured similar to that of the charging handle of an M14, where not only the x axis but also the y axis receive radius cuts. The handling surface of the