Holosun High Mount AACW1.4 – High Absolute Co-Witness Mount for 403B/C, 503C/CU/GUHolosun AACW1.4 high monolithic mount for 403/503 series sights. Provides additional 1.4 inches (35.5mm) height from Picatinny rail to lens center. 6061-T6 aluminum, ideal for AR-15.Absolute Co-Witness HeightHeight 1.4" (35.5mm) ensures absolute alignment of red dot with iron sights. Red dot positioned at same level as front sight post.403/503 CompatibilityFits: Holosun HS403B/C, HS503C/CU/GU and all Aimpoint Micro T1 footprint sights. Non-QD (non-quick-detach)—monolithic construction.6061-T6 AluminumMade from 6061-T6 aluminum with anodizing. Weight 40 grams. Dimensions: 50 × 30 × 29mm. Black finish. Torx screw attachment.For AR-15 PlatformIdeal height for AR-15 and similar platforms. Provides standard sight height for AR-type rifles. Repeatability and reliability.Monolithic ConstructionSolid (non-QD) construction ensures maximum rigidity and zero stability. Torx screw installation to Picatinny rail.Professional OpticsAuthorized Holosun dealer. Store in Split, Croatia. Fast European delivery.Technical SpecificationsParameterValueCompatibilityHolosun 403B/C, 503C/CU/GU, Aimpoint MicroMount TypePicatinny (non-QD)HeightAbsolute Co-Witness (1.4" / 35.5mm)Material6061-T6 AluminumDimensions50 × 30 × 29mmWeight40g..

Holosun HS503CU: The Smart Shooter’s Go-To OpticWhen you need a red dot built for hard use without the premium price tag, the Holosun HS503CU is the clear answer. This isn't just another micro-optic; it's a thoughtfully engineered tactical optic with solar power that balances every essential feature—protected turrets and a versatile reticle—into a rugged, field-ready package. It's the smart choice when you're ready to buy the Holosun HS503CU red dot for unfailing reliability in hunting, tactical applications, or competitive shooting, and an optic you can order with confidence knowing it’s ready for anything you throw at it.The Field-Ready Features That MatterWhat sets the HS503CU apart is how its features work together to solve real-world problems. This is more than a list of specs; it’s a system designed for performance.Intelligent Hybrid Power: The Solar Failsafe™ technology isn’t just a gimmick. It actively powers the reticle in sufficient light, drastically extending the CR2032 battery life to a staggering 50,000 hours. Combined with Shake Awake™ motion activation, your optic is always on when you need it and conserving power when you don’t. No more dead batteries at the worst possible moment.Protected, Low-Profile Turrets: The "U" in HS503CU stands for the U-shaped housing that shields the windage and elevation turrets from bumps, drops, and snags. It’s a simple but crucial design choice that ensures your zero stays put, whether you’re navigating thick brush on a hunt or maneuvering around cover in a dynamic shooting course.Adaptable MRS Reticle: Holosun’s Multi-Reticle System (MRS) lets you choose your reticle on the fly. Use the 65 MOA circle with a 2 MOA dot for incredibly fast target acquisition in close quarters, or switch to the 2 MOA dot alone for precise shots at a distance. It’s two sights in one, giving you a tactical edge in any scenario.Technical Specifications at a GlanceFeatureSpecificationReticle2 MOA Red Dot & 65 MOA Circle (MRS)Power SourceSolar Failsafe™ + CR2032 BatteryBattery LifeUp to 50,000 HoursBrightness Settings10 Daylight & 2 Night Vision CompatibleActivationShake Awake™ Motion SensorHousing Material6061-T6 AluminumTurret DesignU-Shaped Protected TurretsAdjustment Value0.5 MOA Per ClickWaterproof RatingIP67 (Submersible to 1 meter)Mounts IncludedLow Mount & Lower 1/3 Co-WitnessWeightApprox. 122g (with high mount)Built for Demanding EnvironmentsThe HS503C-U is a true workhorse, perfectly suited for a range of platforms and uses:For the Hunter: Its lightweight design won't unbalance your rifle, and the crisp red dot is perfect for quick shots on moving game like wild boar or deer in varied light conditions.For the Tactical Shooter: The rugged aluminum body and protected turrets can handle the rigors of training and duty use on AR platforms, pistol-caliber carbines, and shotguns. The sight holds zero reliably under heavy recoil.For the Airsoft Player: Get military-grade durability and performance in a package that can withstand the intense pace and impacts of competitive airsoft and Milsim events.Why Order Your HS503C-U from Professional Optics?At Professional Optics, we are proud to have the Holosun HS503CU for sale in Europe, backed by our own field experience. Located in Split, Croatia, we don't just sell gear; we use it. We recommend the HS503CU because we know it delivers exceptional value. When you buy from us, you get competitive pricing, expert advice, and fast, reliable shipping across the EU. Order today and equip your firearm with an optic trusted by seasoned shooters worldwide...

Holosun HS510C Lower 1/3 Riser: Clearer View, Faster AimOptimize your Holosun HS510C with this precision riser. Easily convert your optic from an absolute co-witness to a cleaner lower 1/3 co-witness height (1.63"). This elevates your red dot for a less obstructed view, improving target acquisition and comfort.Crafted from durable aluminum, the kit includes the riser plate and extended screws for simple, secure installation. Achieve a more natural "heads-up" shooting posture instantly.Available at Professional Optics in Split, Croatia. Fast, reliable shipping across Europe...

Holosun HE530C-RD: Advanced 30mm Red Dot Optic with Titanium EngineeringThe Holosun HE530C-RD delivers exceptional performance through a unique combination of robust titanium construction, Solar Failsafe technology, and precision red dot optics designed for demanding rifle applications. This model represents a distinct approach within the 530 series, offering shooters a classic red reticle experience enhanced by cutting-edge power management and durability features.Engineering Excellence and ConstructionFull Titanium Architecture:The HE530C-RD features a CNC-machined Grade 5 titanium body that provides superior strength-to-weight characteristics compared to conventional aluminum housings. This premium material choice ensures exceptional resistance to environmental stress, impact damage, and corrosion—critical factors for field reliability under extreme conditions.Advanced Red Dot Technology:Utilizing Holosun's refined 650nm Red Super LED, the optic delivers crisp, high-contrast visibility across diverse lighting environments. The red wavelength provides excellent definition against varied backgrounds while maintaining battery efficiency through optimized power consumption.Dual Power Innovation:The integrated Solar Failsafe system automatically transitions between solar and battery power based on ambient light conditions. This technology extends operational time significantly while providing redundant power security, ensuring the reticle remains visible even during battery depletion scenarios.Technical Specifications Holosun HE530C-RDFeatureSpecificationReticle2 MOA red dot, 65 MOA circle, or combined (MRS)Objective Lens30 mm diameter, multi-coatedHousing MaterialGrade 5 titanium, CNC-machinedAdjustment0.5 MOA per click, ±50 MOA total rangeBrightness Control12 levels (10 daylight, 2 night vision)Power SystemCR2032 + Solar Failsafe, 50,000+ hour runtimeMotion ActivationShake Awake™ with programmable settingsMounting SystemQD absolute co-witness at 1.41"Environmental RatingIPX8 waterproof, 1000G shock resistantWeight192 g (6.77 oz) with mountDimensions82 x 42 x 47 mmOperating Range-30°C to +60°CEye ReliefUnlimitedMulti-Reticle System AdvantagesThe HE530C-RD's Multi-Reticle System provides three distinct aiming solutions:Precision Mode (2 MOA): Optimized for accurate shot placement at extended ranges and detailed target identificationRapid Acquisition (65 MOA): Designed for fast target engagement and close-quarters applicationsHybrid Configuration: Combined circle-dot display offering maximum tactical flexibilityThis system enables instant adaptation to changing engagement requirements without compromising zero retention, making it ideal for dynamic shooting scenarios and varied mission profiles.Power Management and ElectronicsBattery Optimization:The side-loading CR2032 compartment allows for rapid field replacement without sight removal or zero loss. Advanced power management circuits maximize battery life while maintaining consistent reticle brightness across the entire operational spectrum.Solar Integration:The Solar Failsafe panel operates seamlessly in daylight conditions, automatically powering the optic and extending battery life. In automatic mode, the system adjusts reticle intensity based on ambient light levels, ensuring optimal visibility without manual intervention.Shake Awake™ Functionality:Motion-sensitive activation conserves power during inactive periods while providing instant readiness upon weapon movement. The system features programmable timeout settings to match specific operational requirements.Mounting and Installation FeaturesThe included quick-detach (QD) mount provides secure attachment to standard Picatinny rails with tool-free operation. The absolute co-witness height (1.41") ensures perfect alignment with AR-pattern iron sights while maintaining a natural cheek weld position...

Skywatcher AC 70/500 Mercury AZ-3 – Versatile Performance for Aspiring StargazersThe Skywatcher AC 70/500 Mercury AZ-3 refractor telescope is an excellent choice for astronomy enthusiasts ready to go beyond basic entry-level models. Available at Professional Optics in Split, Croatia, with shipping throughout Europe, this telescope offers a compelling mix of portability, optical quality, and user-friendly controls—making it ideal for those seeking a reliable, slightly more advanced instrument for both celestial and terrestrial observation.Verified Technical SpecificationsFeatureSpecification & ExplanationOptical DesignRefractor – precision lenses deliver sharp, color-accurate images with minimal distortion.Aperture70 mm – gathers ample light for detailed views of the Moon, planets, and terrestrial scenes.Focal Length500 mm – offers a wide field of view, perfect for panoramic sky sweeps and landscape observation.Focal Ratiof/7.1 – balances brightness and magnification, suitable for a variety of targets.Mount TypeAZ-3 Alt-azimuth – dual-axis control for smooth, precise tracking and positioning.TripodRobust aluminum tripod – ensures stability for both home and field use.EyepiecesTypically includes two (e.g., 10 mm and 25 mm) for a range of magnifications.Diagonal Mirror90° star diagonal – provides comfortable viewing at high altitudes.Finderscope6x24 optical finderscope – helps with quick and accurate target acquisition.AccessoriesIncludes user manual, lens cleaning cloth, and accessory tray for a complete observing setup.Key Practical BenefitsEnhanced Optical Clarity: The 70 mm aperture and 500 mm focal length work together to deliver bright, detailed images—ideal for lunar landscapes, planetary features, and daytime vistas.Wide Field Versatility: The short focal length and quality optics make it easy to scan star fields, observe clusters, or enjoy scenic terrestrial views.Stable, Precise Mount: The AZ-3 mount’s dual slow-motion controls offer smooth, accurate tracking of celestial objects, reducing frustration for users who want more than a basic mount.Portable and Durable: Lightweight yet sturdy, the Skywatcher AC 70/500 is easy to transport and set up, whether at home, on a balcony, or in the countryside.Use CasesLunar Observation: Explore craters, valleys, and lunar maria in impressive detail—perfect for both solo study and family sessions.Planetary Viewing: Observe Jupiter’s moons, Saturn’s rings, and the phases of Venus with clarity, thanks to a stable mount and quality optics.Terrestrial Viewing: Enjoy crisp, wide-angle views of landscapes, wildlife, and distant landmarks during the day.Educational Exploration: Well-suited for students and adults looking to deepen their understanding of astronomy and optics.Why the Skywatcher AC 70/500 Mercury AZ-3 Is Ideal for Enthusiastic BeginnersStep Up from Basic Models: Offers improved optics, a more stable mount, and greater versatility than typical entry-level telescopes, supporting users as their interests grow.Comprehensive Accessory Kit: Everything needed for a successful observing session is included, minimizing the need for extra purchases.User-Friendly Yet Capable: The intuitive AZ-3 mount and straightforward assembly make it accessible, while its performance satisfies users ready for more serious exploration.Long-Term Value: As skills and curiosity develop, this model continues to deliver reliable, enjoyable performance for both night sky and daytime observation.Ease of Setup and UsageAssembly is simple: extend the tripod, attach the mount and telescope, insert an eyepiece, and align with the finderscope. The included manual provides clear, step-by-step instructions. The AZ-3 mount’s slow-motion controls allow for precise adjustments, making it easy to track objects smoothly across the sky or landscape—ideal for longer observing sessions.Choose the Skywatcher AC 70/500 Mercury AZ-3 from Professional Optics Split and enjoy a reliable, versatile telescope that grows with your astronomical curiosity—delivering clarity, ease of use, and lasting value across Europe..