The Devil Dog Tactical Hard Charger is a Patent Pending Picatinny mounted Side Charging Handle System that mounts to a specified section on the Picatinny rail of any Standard, Forged, Flat Top AR-15 rifle and replaces the existing charging handle, turning your rifle into a Side Charger.Features:* Mounts to the Rear Picatinny slot of the rifle's upper receiver* Gross Motor Skills* Interchangeable* Removes stress on roll pin and release lever* Reduces torque on charging handle* Easily installed and field strippable* Compatible with most AR15 & AR9 platforms