The TruGlo Brite-Site TFO (TG131MPT) is a CNC-machined steel front and rear sight set for the Smith and Wesson M&P platform that combines tritium and fiber optic technologies into a single housing, giving you a bright, usable sight picture from full daylight to complete darkness without batteries. Designed for concealed carry holders, duty shooters, and competitive handgun shooters looking for a drop-in tritium fiber optic night sight upgrade for the S&W M&P, Shield, SD9, and SD40, the TG131MPT eliminates the visibility gaps that come with choosing one technology over the other.
Key Features
- Part number: TG131MPT
- Sight type: Front and rear set, tritium and fiber optic
- Technology: Patented TFO (Tritium Fiber Optic) dual-element
- Front sight: Green tritium and fiber optic
- Rear sight: Green tritium and fiber optic, two-dot
- Front sight face: Serrated
- Construction: CNC-machined steel
- Finish: Fortress permanent protective coating
- Battery requirement: None
- Compatible models: S&W M&P full size and compact, M&P Shield, M&P .22 (excluding .22 Compact and C.O.R.E. models), SD9 and SD40 (excluding VE models)
- Holster compatibility: Fits standard holsters
Special Features
- TruGlo's patented TFO technology layers tritium and fiber optic elements in the same sight body, so the fiber optic delivers a brilliant aiming dot in bright light while the tritium takes over automatically in low light and darkness, with no manual switching or user action required.
- Swiss tritium is used in both the front and rear elements, chosen for its output consistency and longevity over the standard service life of the sight.
- The Fortress finish bonds a permanent protective coating to the steel housing, resisting corrosion, holster wear, and surface abrasion without adding measurable thickness to the sight profile.
- Machined channels in both the front and rear housings route the fiber optic rods internally, protecting them from physical damage while keeping the rods hidden from a target's view during an engagement.
- The snag-resistant profile keeps the rear sight from catching on a holster mouth, cover garment, or draw surface during a fast presentation, a critical design point for carry use.
- The two-dot rear paired with a single front dot creates a clean three-dot sight picture that aligns quickly under stress and does not clutter the target zone with excess visual information.
Practical Benefits
- The seamless day-to-night transition means you train and carry with the same sight picture across every lighting environment, removing the adjustment period that comes with switching between passive night sights and standard fiber optic setups.
- The steel construction and Fortress coating hold up to the repetitive draw and holster cycles that competition shooters and daily carriers put on their equipment over years of use.
- The standard holster-compatible profile means you do not need to replace your existing holster after installation, keeping the total upgrade cost down.
- These sights are compatible with a broad range of M&P configurations, making the TG131MPT a practical choice for households or departments running multiple M&P variants on a shared accessory budget.
- Installation requires a sight pusher tool and is best performed by a qualified gunsmith, putting the TG131MPT in the same category as any quality steel replacement sight in terms of fitment precision.
- Whether you carry daily or run your M&P in competition, your TruGlo Brite-Site TFO (TG131MPT) gives you a verified sight picture at every light level so your focus stays on the target, not on whether your sights are visible.
The TruGlo Brite-Site TFO (TG131MPT) is a proven platform and a smart addition for the S&W M&P owner who wants a permanent, battery-free sight upgrade that performs from the range to the street in any lighting condition.
| MANUFACTURER | TRUGLO |