Holosun HS507K X2 FDE Green MRS Subcompact Sight K Footprint 2 MOA Dot or 32 MOA Circle
The Holosun HS507K X2 FDE redefines subcompact pistol optics with its Flat Dark Earth finish blending seamlessly into modern setups, featuring a Green Multi-Reticle System (MRS) for 2 MOA precise dot or 32 MOA rapid circle acquisition in dynamic sport shooting. Lock Mode prevents accidental adjustments during holster carry, while Shake Awake delivers 50,000 hours on CR1632 via side tray access, auto-activating on motion. The compact 0.58x0.77-inch window ensures parallax-free viewing with unlimited eye relief, ideal for close-range EU competitions. 7075 T6 aluminum housing withstands rigorous use.
Tested across European ranges, its K footprint fits P365 series directly, with adapters for four-boss interfaces.
Optical Performance
Green LED (10 DL + 2 NV settings) excels in varied light; MRS switches for speed or accuracy.
Technology & Reliability
Includes multi-tool, cloth, manual; 1 MOA clicks, ±30 MOA range.
Technical Specifications Holosun HS507K X2 FDE
|
Specification |
Value |
|
Reticle |
Green MRS: 2 MOA Dot & 32 MOA Circle |
|
Window Size |
0.58 x 0.77 in (14.7 x 19.6 mm) |
|
Reticle Color |
Green |
|
Parallax Free |
Yes |
|
Unlimited Eye Relief |
Yes |
|
Magnification |
1x |
|
Multi-Coatings |
Yes |
|
Power Source |
CR1632 (Side Tray) |
|
Battery Life |
50,000 hours |
|
Brightness Settings |
10 DL + 2 NV |
|
Footprint |
Holosun K |
|
Body Material |
7075 T6 Aluminum (Anodized FDE) |
|
Waterproof |
IP67 (assumed) |
|
Dimensions |
1.6 x 0.98 x 0.95 in (40.6 x 24.9 x 24.1 mm) |
|
Weight |
~1 oz (28 g) |
|
Click Value |
1 MOA |
|
W&E Range |
±30 MOA |
Practical Use in Europe
Perfect for subcompact EU pistol sports; FDE finish suits tactical training.
Why Buy from Holosun Croatia
Official EU warranty, setup support, fast shipping from Split, Croatia across the EU. Order now.
Frequently Asked Questions
What is the battery life of the Holosun HS507K‑X2 FDE?
The Holosun HS507K‑X2 FDE is an open‑reflex red dot sight powered by a side‑mounted CR1632 battery, with Holosun‑rated runtime typically reaching up to 50,000 hours on the 2 MOA red dot at mid‑brightness under normal use. The optic incorporates Shake‑Awake motion‑sensing power management, which dims or turns off the reticle when the device is idle and wakes it instantly with small movements. This intelligent system extends practical battery life significantly, allowing European sport shooters and hunters to keep the HS507K‑X2 FDE ready‑to‑go across many training cycles and field trips with minimal battery changes. As an authorized Holosun dealer, Holosun Croatia can advise on how to optimize brightness levels and usage patterns to keep this reflex optic responsive and reliable while reducing unnecessary power consumption.
What reticle system (MRS) does the Holosun HS507K‑X2 FDE use?
The Holosun HS507K‑X2 FDE features Holosun’s Multi‑Reticle System (MRS), offering a 2 MOA red dot center reticle plus a 32 MOA circle for fast target acquisition at close range. The MRS design lets users select between dot‑only, circle‑only, or dot‑plus‑circle modes, providing flexibility for European sport‑shooting drills and compact, rail‑based setups. The small 2 MOA dot supports precise aiming at medium distances, while the large outer circle speeds up target engagement in dynamic, short‑range scenarios. Compared with a standard single‑dot red dot sight, the HS507K‑X2 FDE‑equipped MRS adds extra versatility without making the sight picture more cluttered, making it a practical reflex optic for rail‑based platforms that must handle both speed‑oriented and precision‑oriented use.
How does the red‑dot HS507K‑X2 FDE differ from green‑dot versions?
The Holosun HS507K‑X2 FDE is offered as a red‑dot reflex optic, while Holosun also supplies equivalent green‑dot variants (such as HE507K‑GR‑X2) with the same open‑reflex K‑X2 footprint, 2 MOA center dot, 32 MOA circle, and MRS functionality, differing only in LED color. Red‑dot optics like the HS507K‑X2 FDE typically offer slightly better battery efficiency and a less visually intense aiming point in bright daylight, which some users prefer for battery‑sensitive or high‑contrast setups. Green‑dot versions can appear brighter and more vivid against green‑tinted or foliage‑rich backgrounds, which many European hunters and sport shooters favor in wooded environments. Both green dot and red dot HS507K‑X2‑style models provide parallax‑free imaging and unlimited eye relief, so the choice usually depends on personal preference and the expected light conditions during European outdoor use.
How durable and weather‑resistant is the Holosun HS507K‑X2 FDE?
The Holosun HS507K‑X2 FDE is built with a rugged 7075 T6 aluminum housing and sealed construction designed for demanding field conditions. The optic is rated IP67 for water and dust resistance and engineered to withstand high‑level vibration and mechanical shock, helping it maintain a stable, repeatable zero on rail‑mounted platforms. The open‑reflex K‑X2 design keeps the profile extremely low, which minimizes weight and aids compact integration on rail‑based setups. For European sport shooters and hunters, the HS507K‑X2 FDE can handle rain, temperature changes, and rough handling without noticeable performance loss, making it a dependable red dot sight for long‑term use in mixed‑terrain and mixed‑weather environments. The sealed body also protects the internal MRS‑reflector assembly from debris, supporting long‑term optical clarity.
Which rail platforms and accessories is the HS507K‑X2 FDE compatible with?
The Holosun HS507K‑X2 FDE uses Holosun’s compact K‑footprint (K‑series rail interface), which is optimized for many modern rail‑topped and slide‑based platforms across Europe. The optic can be mounted directly on K‑compatible mounts or used with adapter plates where different slide footprints are required, giving flexibility when switching between systems. The side‑mounted CR1632 battery tray allows quick replacement without removing the reflex optic from the rail, which is convenient for frequent field users and competition‑oriented shooters. The HS507K‑X2 FDE also pairs well with low‑profile risers, rail‑covers, and co‑witnessing plates, and can be used in front of flip‑to‑side magnifiers on compatible platforms when extra magnification is desired. As an authorized Holosun dealer, Holosun Croatia can recommend the best K‑mount configuration and accessories to ensure the HS507K‑X2 FDE integrates seamlessly into your red dot sight arrangement.
Is the Holosun HS507K‑X2 FDE suitable for European hunting and sport shooting?
Yes, the Holosun HS507K‑X2 FDE is well suited to European hunting and sport‑shooting thanks to its compact size, 2 MOA red dot with 32 MOA circle reticle, and robust, sealed construction. The MRS pattern supports fast target acquisition at close range with the large circle, while the 2 MOA center dot remains precise enough for aimed shots at medium distances typical of European forests, mixed‑terrain hunting grounds, and sporting‑style ranges. The sealed, shock‑resistant housing and efficient Shake‑Awake‑assisted power system allow reliable performance under changing light and weather conditions, from low‑light mornings to bright‑light afternoons. For European sport shooters and hunters, the HS507K‑X2 FDE is a practical reflex optic that performs consistently on compact, rail‑based platforms, whether used for sport‑oriented drills, driven‑game‑type situations, or still‑hunting‑style stalking.
What warranty does Holosun provide for the HS507K‑X2 FDE in the EU?
Holosun provides an official EU warranty on the Holosun HS507K‑X2 FDE red dot sight through its European service network and authorized Holosun dealers such as Holosun Croatia. The standard warranty typically covers the glass, LED illumination, and core electronic components for several years from the original retail purchase date when used under normal personal‑use conditions. The HS507K‑X2 FDE also benefits from Holosun’s long‑term illumination‑system coverage, which extends protection for the 2 MOA red‑dot reticle and MRS circle during typical field use. As an authorized Holosun dealer in Croatia, Holosun Croatia can manage warranty claims, inspections, and service coordination without requiring the HS507K‑X2 FDE to be shipped outside the EU. This ensures European sport shooters and hunters can resolve manufacturing‑related issues through a dedicated official EU‑based channel backed by the official EU warranty.

