Trijicon TRSA137O 3-Dot Night Sight — S&W M&P/SD9VE/SD40VE (Pkg 1)
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Trijicon TRSA137O 3-dot night front sight for S&W M&P, SD9VE, and SD40VE pistols; single-unit package (Pkg Qty: 1). Excludes M&P Shield and C.O.R.E. models — SKU TRSA137O.
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Description
Description
Product Overview
Trijicon TRSA137O is a single-unit 3-dot night front sight supplied as an accessory for handgun sights. It is specified to fit S&W M&P, SD9VE, and SD40VE models and explicitly excludes M&P Shield and C.O.R.E. platforms (SKU TRSA137O).
Why this product
This listing provides a verified factory sight option from Trijicon in a one-piece package (Pkg Qty: 1). The listing’s model fit notes identify the particular Smith & Wesson model families it supports and those it does not, enabling accurate procurement for parts replacement or sight upgrades.
Key Verified Specifications
- Manufacturer / Brand: Trijicon (source: product-270273:f002, product-270273:f006)
- Part / SKU: TRSA137O (source: product-270273:f013)
- Product category: Handgun Sights; Scopes, Sights, & Optics; Accessory (source: product-270273:f003, product-270273:f004, product-270273:f005)
- Package quantity: 1 (source: product-270273:f008, product-270273:f011)
- Fit notes: Fits S&W M&P, SD9VE, & SD40VE; excludes M&P Shield & C.O.R.E. (source: product-270273:f009, product-270273:f010)
Appropriate Use Cases
- Replace or stock a single front night sight for Smith & Wesson M&P, SD9VE, or SD40VE handguns where a 3-dot night sight is required (source: product-270273:f009, product-270273:f008).
- Maintain parts inventory for armory or service operations that support the listed S&W models — buy per-unit quantities for targeted repairs (source: product-270273:f008, product-270273:f009).
What Customers Should Know
- Confirm exact firearm model before ordering: this sight is specified to fit M&P, SD9VE, and SD40VE and explicitly excludes M&P Shield and C.O.R.E.; do not assume compatibility with other S&W variants (source: product-270273:f009, product-270273:f010).
- Package contains one sight (Pkg Qty: 1); order quantity accordingly for multi-unit needs (source: product-270273:f008, product-270273:f011).
- SKU for order and inventory reference: TRSA137O (source: product-270273:f013).
Specifications
- Short Stroke Gas Piston Gas System (Rifle Length)
- 18.6″ Barrel Length ( Mid-Weight style, non-fluted)
- 1:8 Twist Rate Rifling

