Radian Weapons Raptor SD AR-15/M16 Ambidextrous Charging Handle Combo Black. Its ambidextrous design allows rapid palm inbladingin or finger-thumb charging of the weapon ensuring the motion is fluid and fast from either strong or support side. The Raptor-SD is compatible with most AR15/M16-pattern rifles. Specifications for Radian Weapons Raptor SD AR-15/M16 Ambidextrous Charging Handle Combo: Manufacturer: Radian Weapons Finish: Mil Spec Type III Hard Coat Anodized Fabric/Material: 7075-T6 Aluminum Gun Model: M16 AR-15 Hand: Ambidextrous Package Contents: Radian Weapons Raptor SD AR-15/M16 Ambidextrous Charging Handle Combo What firearm models does the manufacturer say Radian Weapons Raptor SD AR-15/M16 Ambidextrous Charging Handle Combo is compatible with? The manufacturer suggests that Radian Weapons Raptor SD AR-15/M16 Ambidextrous Charging Handle Combo is compatible with AR-15 M16Radian Weapons R0939: Raptor SD AR-15/M16 Ambidextrous Charging Handle Combo Black