Trijicon DI Night Sight Replacement Kit AC50011 Superb Fiber

Description

The Trijicon DI Night Sight Replacement Kit is the standard green fiber and black retainer service pack for Trijicon DI Night Sights, part number AC50011. The DI front sight is built around an interchangeable fiber, and this kit is what you order when the fiber needs replacing or when you want to change what the front sight looks like.

What Makes A DI Sight Different

Most fiber front sights bond the rod permanently into the blade. If the rod breaks or you dislike the colour, the blade goes in the bin. Trijicon’s DI design instead holds the fiber under a removable retainer, which is the patent pending part of the sight and the reason this kit exists.

DI stands for dual illuminated. The sight carries a tritium lamp for darkness and a fiber rod for daylight, stacked so that the aiming point sits in the same place whatever the light is doing. The Trijicon DI Night Sight Replacement Kit addresses the daylight half of that arrangement, which is the half that wears.

Green Fiber And A Black Retainer

This is the standard configuration: a green fiber rod with a black retainer. Green is the colour most shooters find brightest in average outdoor light, and a black retainer keeps the surrounding metal visually quiet so the rod is the only thing drawing the eye.

Because the fiber is removable, a Trijicon DI Night Sight Replacement Kit also lets you change colour rather than only replace like with like. Shooters who move between an indoor range and open ground sometimes keep more than one colour on hand and swap the rod to suit, which is not possible with a bonded fiber sight.

Why The Fiber Is The Part That Wears

A fiber optic rod is a thin polymer filament. It cracks from impact, shears against a rough holster mouth, and dulls with long exposure to ultraviolet light and to aggressive cleaning solvent. Tritium, by contrast, simply dims slowly across a decade and needs nothing done to it.

So the failure you will actually see on a DI sight is a dead or dull fiber with a perfectly good tritium lamp beneath it. That is precisely the situation a Trijicon DI Night Sight Replacement Kit is for, and it costs a fraction of what a new front blade and a fitting charge would.

Trijicon DI Night Sight Replacement Kit Contents

• Product: Trijicon DI Night Sight standard replacement kit
• Contents: Green fiber optic rod and black retainer
• Application: Trijicon DI Night Sight front blades
• Illumination replaced: Fiber optic daylight element only
• Tritium: Not included, the lamp in the sight is unaffected
• Manufacturer Part Number: AC50011

Why Shooters Keep One On Hand

• Restores a DI front sight rather than replacing the whole blade
• Green fiber is the brightest option in average outdoor light
• Removable retainer means the fiber can be changed again later
• Factory Trijicon material rather than a generic rod
• Small enough to live in a cleaning kit or range bag

Fitting The Kit

The retainer comes off, the old fiber comes out, the new rod goes in and the retainer goes back on. It is a workbench job rather than a gunsmithing operation, and it is the whole reason Trijicon engineered the DI sight this way in the first place.

Work over a tray, because the retainer is small and a carpet will keep it. Follow the instructions that come with the Trijicon DI Night Sight Replacement Kit rather than improvising, and do not apply heat to the rod the way you would with a bonded fiber sight, because the retainer is doing the job the melted heads used to do.

Making The Next Rod Last

Most fiber damage comes from two sources. A holster with a sharp or rough mouth saws at the front sight on every draw and reholster, and a few hundred repetitions is enough to do real harm. Solvent is the other, because aggressive bore cleaners attack the polymer.

Wipe the blade rather than soaking it, keep sprays off the sights, and use a holster with a smooth mouth. Do those three things and a Trijicon DI Night Sight Replacement Kit will typically see you through several seasons rather than one.

Ordering

Check that your sight is a DI model before ordering. Trijicon also makes conventional fiber sights whose rods are not retained this way, and those take the bare fiber packs instead. The two are not interchangeable despite both being described as replacement fiber.

If you are looking at complete sight sets rather than spares, browse the rest of our optics and sights and read the manufacturer product page for the current specification.

MAG5 Firearms is a family owned FFL dealer in Collegeville, Pennsylvania. Every Trijicon DI Night Sight Replacement Kit we list is a genuine Trijicon item sourced through authorized channels. If you are not sure whether your front sight takes this kit or a bare fiber rod, reach out before you order and we will give you an honest answer.

Keeping A Trijicon DI Night Sight Replacement Kit In The Range Bag

A dead front fiber turns a fast sight into a black post, and it tends to happen the morning of a match or the first day of a season rather than on a quiet Tuesday. A Trijicon DI Night Sight Replacement Kit takes up no room, costs very little and removes that problem entirely.

DI Sights And Where They Fit

Trijicon builds DI Night Sights for several popular pistol platforms, and the fiber and retainer arrangement is common across them. That means one Trijicon DI Night Sight Replacement Kit covers whichever DI equipped pistol in the safe needs attention, rather than a separate part number for each gun.