TruGlo
Authorized Dealer • Tritium & Fiber-Optic Sights • When Brightness Counts
TruGlo is the US-market manufacturer whose fiber-optic and tritium sighting systems span both firearms and archery — an unusual dual-vertical catalog that covers handgun night sights, rifle and shotgun sights, red dot optics, scopes, and the VEROS bow-sight line on the archery side. Keep Shooting stocks the TFO Night Sights for Glock — the company’s flagship hybrid sight design combining a tritium night vial with a fiber-optic daylight rod in the same sight body, fitting thirteen Glock models from the G17 through the G39.
TruGlo at Keep Shooting
TruGlo is the US manufacturer of fiber-optic and tritium sighting systems whose catalog spans both firearms and archery — a dual-vertical product line that’s unusual in the sighting market, where most makers pick one side or the other. The manufacturer’s product family covers handgun night sights (the TFO, TFX, TRITIUM, FIBER-OPTIC, and FACTION lines), rifle and shotgun iron sights, red dot optics and rifle scopes, lights and lasers, choke tubes, and the VEROS five-pin bow sight and broader archery/crossbow catalog on the bowhunter side. Tagline: “When Brightness Counts.” Keep Shooting stocks the TFO Night Sights for Glock as the entry point into the TruGlo handgun-sight line.
TFO Night Sights for Glock — Thirteen-Model Fitment
The TruGlo TG131GT1 TFO Night Sights is the wide-fitment Glock sight in the TFO line — one SKU that fits thirteen different Glock models: the G17, G17L, G19, G22, G23, G24, G26, G27, G33, G34, G35, G38, and G39. That fitment list covers most of the popular Glock 9mm and .40 S&W frames produced across Gens 1-4 plus the long-slide and competition variants — if you own a Glock in 9mm or .40, this SKU likely fits. Gen 5 frames use a different sight cut and are NOT included in this fitment list; Gen 5 Glock owners need TruGlo’s Gen 5-specific TFO part numbers or a different sight manufacturer’s Gen 5-cut SKU. The TFO green-front-dot configuration is the standard high-contrast color for daylight aiming and the canonical TruGlo presentation.
What "TFO" Actually Means — The Hybrid Sight Technology
TFO stands for Tritium Fiber Optic, and the technology is what distinguishes the TruGlo line from pure-tritium or pure-fiber-optic alternatives. Both component technologies have been around for decades, but each has a tradeoff that the other addresses:
Tritium is a radioactive isotope of hydrogen sealed in a small glass vial. The isotope decays continuously, excites a phosphor coating inside the vial, and emits a constant low-intensity glow that works without any external light source. The glow is bright enough to aim by in total darkness and lasts roughly 12-15 years before the half-life decay drops the brightness below useful levels. The tradeoff is that tritium is too dim to compete with daylight — in bright sun the glow is invisible, and the shooter is back to relying on the black-outline frame of the sight body.
Fiber-optic sights use a small plastic rod (typically red or green) that gathers ambient light along its length and concentrates it into a bright dot at the shooter-facing end. In daylight the fiber rod is brilliant — far brighter than a plain black sight post. The tradeoff is the inverse of tritium’s: in darkness with no ambient light to gather, the fiber rod is invisible and the shooter is left with no visible dot at all.
TFO combines both in the same sight body. The fiber rod sits in the sight housing for daylight use; the tritium vial sits behind or beside it for darkness. Whichever ambient condition the shooter is in, one of the two technologies is in its operational range, and the sight always presents a bright dot. For a defensive handgun — where the shooter might practice on a sunny range at noon and might deploy the same gun in a dark parking lot at midnight — the hybrid TFO approach avoids the choose-one-condition tradeoff that single-technology sights force.
The Broader TruGlo Catalog — Firearms & Archery
Beyond the TFO line, the TruGlo handgun-sight family covers several refinements of the same technology: the TFX and TFX Pro are updated TFO variants with refined housing geometry; the TRITIUM and TRITIUM PRO are pure-tritium-only sights for shooters who prefer the simpler single-technology configuration; the FIBER-OPTIC and FIBER-OPTIC PRO are the daylight-only counterparts; and the FACTION Series is the newer iron-sight line. Beyond handguns, the TruGlo catalog covers rifle scopes, red dot optics, shotgun bead sights for the bird-and-clay market, rifle iron sights, lights and lasers, choke tubes, targets, and shooting rests.
On the archery and crossbow side, the catalog runs through bow sights (the VEROS five-pin is the canonical multi-pin sight in the line), quivers, mechanical releases, arrow rests, stabilizers, broadheads, complete crossbows, bowfishing equipment, illuminated nocks, and peep sights. The dual-vertical catalog is what makes TruGlo unusual in the broader sighting market — the same fiber-optic and tritium engineering that anchors their firearm sights drives the bow sight pins, so a bowhunter and a handgun shooter buying from TruGlo are getting consistent core technology across two very different platforms.
Pairing & Cross-References
Because the TruGlo TFO we stock fits the Glock platform, the natural pairing is the Glock parts catalog — where the TFO sights surface alongside the rest of the Glock-fit aftermarket (barrels, triggers, lower parts kits, internals, grip mods, and the peer-tier AmeriGlo I-Dot night sights for shooters comparing tritium-only sight options against the TFO hybrid). For the complete Glock brand catalog covering OEM pistols, parts, and accessories, see the brand landing. For the Glock barrel sub-bucket specifically, see the Glock barrels catalog.
Frequently Asked Questions — TruGlo
Yes, we maintain inventory of the most popular TruGlo products. Each product listing shows real-time stock status. If an item is temporarily out of stock, you can sign up for back-in-stock notifications on the product page.
Yes! All orders over $49.95 qualify for free shipping, including TruGlo products. Orders typically ship within 1–2 business days.
Keep Shooting offers hassle-free returns on TruGlo products. If you're not completely satisfied, contact our customer service team for a return authorization. All products must be in original, unused condition.
Yes, Keep Shooting is an authorized TruGlo dealer. All products are sourced directly and include full manufacturer warranty coverage.