Holosun HE510C-GR-FDE Open Reflex Green Dot Sight FDE - HE510C-GR-FDE

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Holosun HE510C-GR-FDE Elite Open Reflex Sight - Multiple Reticle System (55 MOA Circle / 2 MOA Green Dot), Solar Failsafe, Titanium Shield, Flat Dark Earth Finish - HE510C-GR-FDE

Product Description

Staging a tactical carbine or shotgun for lightning-fast target presentation requires an optic that balances an expansive field of view with absolute situational visibility. Narrow micro dots often feel like looking through a straw, limiting peripheral tracking downrange, while standard red reticles can easily wash out against bright clay trails or warm wood backdrops on your bench. The **Holosun® HE510C-GR-FDE Elite Open Reflex Sight (HE510C-GR-FDE)** completely flatlines these sighting limitations, delivering an oversized, panoramic open window driven by an ultra-visible **green LED targeting matrix**.

Proudly engineered from tough **6061-T6 structural aluminum** and wrapped in a protective **hardened titanium alloy hood sleeve**, this elite reflex sight is finished in a durable, factory-matched **Flat Dark Earth (FDE) finish**. At its optical center, a multi-coated panoramic glass window displays Holosun's signature **Multiple Reticle System (MRS)**, letting the operator toggle instantly between a precise 2 MOA green dot, a 65 MOA situational circle, or both combined. Packed with advanced energy engines, this optic integrates a **Solar Failsafe™ top solar panel deck** to run the unit off ambient environmental light and an active **Shake Awake™ motion sensor** that sleeps the electronics during stationary storage on your workbench.

Outfitted with an integrated quick-detach (QD) Picatinny riser mount for absolute toolless staging, this turn-key optoelectronic asset ensures instant target acquisition directly from your workbench.

*Armorer Bench Notes & Real-World Optic Staging Guidance: The Holosun HE510C-GR-FDE box package arrives workspace ready, containing the complete reflex sight assembly with integrated QD mount, 1x CR2032 lithium coin battery, a spare battery tray drawer, an adjustment tool wrench, a lens cleaning utility cloth, and a comprehensive instruction manual portfolio. UNIVERSAL MIL-SPEC 1913 PICATINNY MOUNT INTERFACE MATRIX: This open reflex riser is engineered natively, strictly, and cross-compatibly to clamp onto **any standard Mil-Spec 1913 Picatinny top deck rail system**. *Host Platform Balancing Checklist:* It aligns perfectly at an absolute co-witness height on **AR-15 carbines, short-barrel sub-guns, tactical shotguns, and gas-piston rifle frameworks** on your bench. Ammunition & Environmental Visual Calibration: The 540nm green LED stream is explicitly tuned to align with the human eye's natural peak visual sensitivity matrix, making it significantly easier to distinguish in harsh mid-day sunlight than traditional red reticles. Armorer Workbench Custom Staging Sequence: 1. Visually and physically confirm your host firearm platform is completely clear of live ammunition, the magazine is removed, and the chamber area is safe. 2. Swing the optic's quick-detach (QD) side lever fully outward to open the lower rail clamping jaws. 3. Position the sight onto your top receiver Picatinny lane, sliding it forward or rearward to achieve comfortable eye relief parameters. 4. Push the QD lever shut until it clicks flush against the chassis body. *Tension Tuning Step:* If the lever feels loose or won't snap closed, look at the opposite side cross-bolt nut. Adjust the nut with your tool clockwise to tighten its bite, or counter-clockwise to loosen it, until the lever clamps firmly shut with smooth hand pressure. 5. Adjust your windage and elevation click adjustments using the integrated dial turrets—calibrated at **0.5 MOA per click index**—to establish a perfect mechanical downrange zero on your bench before firing.*

Key Features

• Panoramic Open Reflex Window: Large open sight window provides an exceptionally wide field of view, making it easy to track moving targets with both eyes open.
• High-Visibility 540nm Green LED: Super-bright green emitter provides a crisp targeting image that is naturally easier for the human eye to pick up in daylight conditions.
• Multiple Reticle System (MRS): Gives you the flexibility to toggle instantly between a 2 MOA target dot, a 65 MOA speed ring, or a combined reticle profile without losing zero.
• Dual Solar Failsafe Engine: Integrates a top solar panel that automatically powers the reticle using ambient light, keeping the sight alive even if your backup battery runs flat.
• Shake Awake Motion Sensing: Smart energy management turns the reticle off during long periods of bench storage and kicks it back on instantly at the slightest movement.
• Titanium Protective Shield: Wrapped in a rugged, grade 5 titanium alloy protective hood that shrugs off heavy impacts and handles severe environmental drops.

Product Specifications

• Brand: Holosun® Technologies / Elite Optoelectronics Target Systems
• Model Line: HE510C Series High-Performance Open Window Reflex Optics
• MPN/SKU Code: HE510C-GR-FDE (Green Reticle Flat Dark Earth Variant Base SKU)
• UPC Code Profile: 605930624953
• Optic Reticle Layout Options: Multiple Reticle System (2 MOA Center Dot & 65 MOA Concentric Ring)
• Illumination Light Source Core: Super-Bright 540nm Solid State Green LED Array
• Windage & Elevation Adjustment Click: 0.5 MOA (Minutes of Angle) Graduated Click Click Turrets
• Chassis Housing Material Base: Heavy-Duty 6061-T6 Structural Grade Aerospace Aluminum Core
• Protective Hood Shield: Hardened High-Tensile Structural Titanium Alloy Outer Shield Sleeve
• Exterior Finish Dressing: Flat Dark Earth (FDE) Corrosion-Resistant Tactical Matte Armor Finish
• Primary Battery Configuration: 1x CR2032 Lithium 3V Coin Cell Battery (Side-Loading Tray Layout)
• Continuous Reticle Battery Life: Up to 50,000 Continuous Hours (Setting 6 Dot-Only Matrix Profile)
• Mount Clamping Type Standard: Integrated Quick-Detach (QD) Mil-Spec 1913 Picatinny Rail Mount Base
• Full Kit Component Checklist: Reflex Optic, CR2032 Battery, Adjustment Wrench, Spare Tray, Cleaning Cloth
• Packaging Format Class: Premium Factory Sealed Holosun Elite Hardshell Presentation Storage Box
• Product Type Category: Optical Components / Open Reflex Red-Green Dot Tactical Sights
• Optical Window Dimensions: ~0.91 x 1.26 Inches (~23.1 x 32.0 mm Expansive Target Window)
• Net Optic Component Mass: ~4.94 Ounces (~140.0 Grams Lightweight High-Strength Frame Weight)
• Environmental Protection Class: IP67 Rated Dustproof and Submersible Waterproof / Fog-Resistant Integrity
• Warranty Tracking Protection: Fully Backed by Holosun Elite Limited Lifetime Factory Product Warranty