Mach Sakai reviews the updated fixed-slide gas gun, highlighting its new "EG Hop-up" system. This improvement allows users to make precise adjustments manually without tools, a significant upgrade over previous versions. The package remains budget-friendly and includes a lightweight ABS silencer and a rail adapter.

During performance testing, the pistol showed consistent muzzle velocities around 75-76 m/s using 0.2g BBs. The trigger pull is notably smooth and manageable for a fixed-slide model, though the reviewer mentioned that the safety levers can be somewhat stiff to operate.

Overall, the Mk23 is praised for its impressive gas efficiency and quiet operation, making it highly effective for stealthy gameplay. Its combination of accuracy, lightweight design, and ease of adjustment makes it a strong, affordable alternative to more expensive brands.