The K2 XL Grip has been specifically modified to work with the UNIT4 Training Rifle by adding an extra detent hole to accept the selector spring.

Designed for use with larger hands, the Magpul K2 XL Grip offers a more vertical grip angle, improving comfort and control on short UNIT4 Training Rifles that bring the primary hand in closer to the shooter's body. The larger size of the grip also allows proper finger placement in precision shooting, helping improve accuracy.

With an aggressive TSP (Trapezoidal Surface Projections) texture for positive weapon control, front and rear serrations for traction, and a proprietary XL grip cap with an oil bottle grip core, the K2-XL brings modern styling and ergonomics to the UNIT4 platform in a larger size.