The Tdx-0 Dlx Ar/m16 Angle Grip is a truly ergonomic, shooter focused flat top grip for AR platform rifles and chassis systems that accept AR pattern pistol grips. Designed for performance by creating a better interface between the shooter and firearm, the ERGO Grip is still the standard by which positive grip and shooter comfort are measured. The ERGO Grip comes with the patented Gapper for increased comfort.