Hi-Viz FastDot H3 Tritium Fiber Optic Night Sight Set S&W M&P Shield MPFD21 For Sale

⚠️ SHIPPING RESTRICTIONS: Due to state regulations, this item cannot be shipped to: AK.🚚 Fast & Free 2–5 Day Shipping! | Ships Same or Next Business Day | USA Seller✓ FITMENT — CHECK BEFORE YOU BUYFits: S&W M&P ShieldNot sure it fits your setup?
Message us before you buy — we answer fast and will confirm fitment for your exact model.Fitment per manufacturer specifications.Hi-Viz FastDot H3 Night Sight Set S&W M&P Shield Tritium Fiber Optic MPFD21

Key Features

Tritium + Fiber Optic Hybrid — Fiber optic rods gather ambient light for bright daylight visibility; tritium vials take over in darkness, glowing without batteries or charging.
• Red Front / Green Rear Color Contrast — Separate colors for front and rear dots make it immediately clear which dot to focus on, reducing the chance of misalignment under stress or low light.
• Low-Profile, Snag-Resistant Housing — Compact sight body sits flush to the slide to reduce hang-up during draw; single-dot front and rear keep the sight picture uncluttered compared to standard three-dot configurations.
• Wide M&P Platform Coverage — One set fits M&P Compact, Full Size, Shield, and Shield Plus in all calibers (excluding optic-ready, 9EZ, and EZ 380 variants).
• 12-Year Tritium Warranty — Hi-Viz warrants the tritium vials for 12 years from date of purchase. Tritium half-life is approximately 12.3 years, so brightness gradually decreases over time; the warranty period aligns with usable service life.

CompatibilityCompatible WithS&W M&P Shield, M&P Shield Plus, M&P Compact, M&P Full Size (all calibers; excludes optic-ready, 9EZ, EZ GreenConditionNewModelFASTDOT, H3TypeNight SightSight PositionFront and Rear SetIlluminationTritium, Fiber OpticReticle ColorRed/GreenDot ColorRed Front, Green RearFor Gun HuntingCountry of ManufactureUnited States⚠️ Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.coasttocoastusa | Trusted USA Seller | Questions? Message us before ordering