Atlas Custom Works CNC EX01 Slide & Frame Kit for Marui TM Hi-Capa GBBP Series, Black/Silver

The Hi-Capa platform is popular for competitive airsoft because it accepts upgrades well. The stock slide and frame are functional but often the first thing players change when they want a more substantial feel or a custom look. This Atlas Custom Works EX01 kit replaces both in CNC aluminum, which shifts the balance and changes how the pistol handles.

What you get. The kit includes a slide and frame machined from CNC aluminum. The weight comes in at 300 grams for the pair, which adds heft without making the pistol unwieldy. The Black/Silver finish pairs a dark frame with a silver slide, giving a two-tone appearance that stands out from standard all-black builds.

Fit and installation. This is designed specifically for Tokyo Marui Hi-Capa GBBP series pistols. The machining is precise enough that the parts should seat without modification, though any metal-on-metal fit benefits from a quick check of the slide travel before loading gas. You're not replacing internals here—just the external shell and frame—so your existing barrel, hop-up, and trigger group stay in place.

What it does not do. This is an external upgrade. It won't change your FPS, rate of fire, or accuracy. The value is in the feel, the look, and the durability of metal over polymer. If you're chasing performance, that comes from hop-up work, barrel upgrades, and valve tuning. If you want a pistol that feels more substantial and looks distinct, this is the upgrade path.

The kit ships with the slide and frame only. No barrel, no internals, no magazine. You install it into your existing Hi-Capa GBBP platform.