5KU Interchangeable Fiber Optic Sights for Hi-Capa Pistols (Type-1), Yellow/Pink

The 5KU Fiber Sight set gives your Hi-Capa a high-visibility front sight without changing the whole sight system. These are fiber-optic inserts that slide into compatible front sight posts, replacing the standard blade with a colored rod that catches ambient light and makes the front sight pop against your target.

Why the color matters. Yellow and pink are both high-contrast colors that stand out in bright outdoor conditions. Yellow tends to read cleaner in full sun, while pink can be easier on the eyes in mixed or shaded lighting. The whole point of fiber sights is that they're self-illuminating — no batteries, no tritium, just the rod gathering light and glowing. Swap the rod out when conditions change or when you want a different look.

What fits. These are built for the Marui Hi-Capa Type-1 pattern, which covers most 1911-style GBB pistols in the 5-inch and 6-inch configurations. If your pistol uses a standard Hi-Capa front sight post, these will fit. They do not work with pistols that have proprietary sight systems or non-standard posts.

Installation. You do not need tools. The fiber rod slides into the sight post and is held by friction or a small setscrew depending on your sight design. If you are unsure, take five minutes to check your current front sight before buying — the post diameter needs to match the fiber rod housing.

What is in the box. One fiber optic set in Yellow/Pink. This is a single colorway, not a multi-pack. If you want both colors, you need to order two sets.

What this is not. These are not complete front and rear sights. They are inserts for your existing front sight post. Your rear sight stays as-is unless you buy a separate rear sight set.

Includes the fiber optic rod and housing compatible with Marui Hi-Capa Type-1 front sights.