Holosun HE509T X2 Green Dot Superb Titanium 32 MOA Sight

Description

The Holosun HE509T X2 Green Dot is the green reticle version of Holosun titanium enclosed pistol sight. A 2 MOA dot with a 32 MOA circle at 540nm, sealed emitter, solar failsafe, 1.27 ounces, and an RMR to 509T adapter plate in the box. Part HE509T-X2-GR.

The Adapter Plate Is In The Box

The plate is the detail that changes the buying decision on the Holosun HE509T X2 Green Dot and it is easy to miss. The 509T uses Holosun own mounting pattern rather than the RMR one, which normally means a slide cut for an RMR will not take it.

Holosun supplies an RMR to 509T adapter plate with the sight, so the Holosun HE509T X2 Green Dot will go onto an RMR cut slide without a separate purchase. That removes the usual objection to a proprietary footprint: you are not locked out of the hardware you already own, and you are not waiting on a plate to arrive before you can shoot.

Green At 540 Nanometres

The Holosun HE509T X2 Green Dot emits at 540nm, almost exactly where human daylight vision peaks, so a green reticle reads brighter to your eye than a red one producing the same actual light. That buys contrast without buying current draw, and on a sight with solar backing it also means the panel has less work to do.

Where it shows is against the colours that swallow red: brick, rust, timber, brown clothing, dirt. The Holosun HE509T X2 Green Dot holds separation from all of those. The reverse is true as well and worth saying, because nobody selling optics likes to mention it: against grass, foliage and green painted steel, green is the colour that loses and red would serve you better. Buy by what you point the gun at.

Titanium, Not Aluminum

Almost every pistol optic on the market is 7075 aluminum. It is light, machines well and is perfectly adequate for most people. The Holosun HE509T X2 Green Dot is titanium, which is a different proposition.

For the same weight titanium is substantially stronger and far more resistant to corrosion, which is why it turns up in aerospace and surgical hardware rather than in things that need to be cheap. On a carry gun the corrosion resistance is what matters day to day, because a sight worn against a sweaty body inside a holster lives in a mildly hostile environment every hour it is worn.

Sealed Emitter, Because Carry Guns Collect Things

An open reflex sight, unlike the Holosun HE509T X2 Green Dot, fires its emitter upward from an exposed shelf at a lens. It works until holster lint, sweat, sunscreen, gun oil or rain lands on that emitter, at which point the reticle dims or dies and you find out at the worst possible moment.

The Holosun HE509T X2 Green Dot has no exposed emitter. The assembly is sealed inside the housing with glass at both ends, so there is nothing for debris to land on and nothing to wipe before you can trust the dot. A sealed emitter in a titanium housing is a sight built around being carried hard and maintained rarely, which is an honest description of most defensive pistols.

A Tall Window And A Ring To Find It With

The Holosun HE509T X2 Green Dot window measures 0.66 by 0.9 inches, taller than it is wide, which is the right orientation for a pistol. A handgun is presented rather than shouldered, so the reticle is usually lost vertically when the gun does not arrive level, and vertical window buys that back.

The 32 MOA circle does the rest. A large ring is far easier for the eye to catch than a small dot while your presentation is still forming; once the draw is grooved you can drop the Holosun HE509T X2 Green Dot to the bare 2 MOA dot for a clean window. Both come from the same emitter, so switching never needs a re-zero.

Power And Brightness

A solar panel harvests ambient light and will keep the Holosun HE509T X2 Green Dot running if the CR1632 dies or is removed. The cell is rated 50,000 hours at setting six, Shake Awake sleeps the sight when the pistol is still, and the tray loads from the side so a battery change never disturbs the mounting screws or your zero. Brightness runs automatically or manually with memory and lockout. Eight daylight settings and four night vision settings. Adjustments move 1 MOA per click across 30 MOA of travel each way.

Specifications

• Model: Holosun HE509T-X2-GR
• Type: enclosed pistol sight
• Reticle: 2 MOA dot and 32 MOA circle, selectable
• Reticle color: green, 540nm LED
• Window size: 0.66 x 0.9 inches, multi coated
• Magnification: 1x, parallax free, unlimited eye relief
• Adjustment: 1 MOA per click, plus or minus 30 MOA travel
• Battery: CR1632, 50,000 hours at setting 6, side tray
• Brightness: 8 daylight and 4 night vision settings, automatic and manual
• Power backup: solar
• Housing: 7075 T6 titanium, titanium finish, black
• Waterproof rating: IP67
• Vibration resistance: 5000G
• Working temperature: -30C to 60C
• Dimensions: 1.6 x 1.16 x 1.13 inches
• Weight: 1.27 oz
• Footprint: Holosun 509T, RMR to 509T adapter plate included
• Features: selectable reticle, solar, Shake Awake, auto off, memory, lockout
• UPC: 605930625868

Who The Holosun HE509T X2 Green Dot Is For

• Carry guns worn against the body where corrosion is a genuine concern
• Shooters whose red reticle keeps washing into brick, rust, timber or brown
• RMR cut slides, covered by the included adapter plate
• Duty pistols where a blocked emitter is not an acceptable failure
• Anyone who wants the toughest housing material Holosun offers

Ordering

Manufacturer specifications are published at Holosun. We are a family owned FFL dealer in Collegeville, Pennsylvania, and we will tell you plainly when an aluminium housed sight is all your use case needs, or when red suits your backgrounds better than green. The red 509T, the 508T and the rest of our optics selection are here to compare.