Enhanced magazine release button that can be set to left or right side. 
Made for Rex Alpha but can be also fitted to other Rex Zero handguns with slight modification to the grips. 

Oak grips for Rex Zero 1 Standard and Tactical

A set of front and rear HIGH profile night sights for all Arex/RexZero 1 models.

Front and rear tritium sights for all Rex Zero 1 models.
Tritium insert offers great visibility at night and in medium lighting conditions and helps with quick target acquisition and faster follow up shots.