Designed to fit Tokyo Marui based systems and Airsoft Masterpiece Advanced frames, the MK-1P installs without fitting, sanding, or modification. In testing, installation is straightforward and requires only basic tools.

The grip and trigger guard are machined from a single block of aluminium. This ensures consistent alignment, eliminates play between parts, and results in a more rigid overall structure compared to multi-piece designs.

Traditional Hi-Capa grips rely on a pin to secure the hammer spring housing and magwell, often requiring force and risking damage. The MK-1P replaces this with a screw-based system