Rusan adapter for devices with M52x0.75 thread - 51.2 mm (v.2017)

Rusan Ultra-Low Profile Weaver Rings with Screw Fixation (25.4mm | H8)For the precision-conscious shooter who demands the ultimate low-profile mounting foundation combined with unwavering fixation security, the decision to buy Rusan Ultra-Low Profile Weaver Rings with Screw Fixation represents a commitment to Croatian engineering at its most refined. These meticulously crafted 25.4mm rings with ultra-minimal 8mm height (product code 050-25.4-8-V) deliver absolute stability through the unwavering dependability of traditional screw-based mounting methodology.The Pursuit of Minimal Profile ExcellenceThe H8 designation in Rusan's product architecture represents the absolute floor of their mounting height spectrum—engineered for applications where every millimeter of profile reduction matters.Extreme Low-Height Philosophy: At just 8mm from rail surface to scope bottom, these rings achieve the lowest practical mounting height while maintaining structural integrity. This ultra-minimal profile creates an almost seamless integration between your rifle and 25.4mm optic, ideal for precision shooting applications and compact rifle configurations.Bore Axis Proximity Advantage: The minimal height positioning brings your scope's optical centerline closer to the rifle's bore axis than any other mount configuration. This proximity dramatically reduces the mechanical offset between point of aim and point of impact, simplifying ballistic calculations and enhancing inherent accuracy potential across all shooting distances.Compact Objective Optimization: Specifically engineered for scopes with objective lenses up to 40mm diameter, these rings provide sufficient clearance while maintaining the ultra-low profile that defines their character. Perfect for tactical scopes, hunting optics, and precision shooting configurations.Croatian Precision Manufacturing HeritageEvery element reflects Rusan's four-decade commitment to gunsmithing excellence and their position as Europe's premier scope mount manufacturer.Monolithic Steel Foundation: Each ring begins as a solid billet of high-grade steel, precision CNC-machined on advanced multi-axis equipment without any casting or injection molding. This manufacturing philosophy eliminates the structural weaknesses inherent in composite assemblies, ensuring absolute rigidity under the most punishing recoil conditions.Screw Fixation Mastery: The "V" designation signifies Rusan's refined screw-based attachment system. Unlike quick-release mechanisms with their inherent variables, the screw fixation provides methodical, permanent mounting with precise torque control. Each installation creates a mechanical bond that simply cannot loosen or shift during use.Integral Recoil Architecture: The robust 3.6mm recoil lug is milled directly from the solid steel ring body—not a separate insert that can fail under stress. This integral design creates an immovable interface with rail slots, preventing any longitudinal movement under the heaviest recoil forces.Advanced Engineering SpecificationsSpecificationDetailsProduct Code050-25.4-8-VRing Diameter25.4 mm (1 inch)Profile Height8 mm (from rail top to scope bottom)Construction MaterialHigh-Grade Steel, CNC MachinedSurface TreatmentBlack Oxide (Corrosion Resistant)Rail InterfaceWeaver & Picatinny CompatibleFixation SystemScrew Attachment (V-Series)Ring Contact Width15 mmRecoil Management3.6mm Integral Lug (Solid Machined)Upper AssemblyTorx T15 ScrewsOptimal Objective SizeUp to 40mm DiameterProfessional Installation ProtocolFor maximum performance and component longevity, adhere to these precise installation parameters:Surface Preparation: Ensure rail surfaces are completely clean and debris-free before ring positioning.Positioning Phase: Place rings at optimal spacing for your specific scope, confirming recoil lugs seat fully in rail grooves.Base Attachment: Apply 2.0-2.5 Nm torque to base screws using calibrated torque tools.Scope Positioning: Install your optic ensuring proper eye relief and perfect reticle alignment.Final Securing: Mount upper ring halves and apply 1.8-2.0 Nm torque to Torx T15 screws in alternating sequence.This methodical approach ensures uniform stress distribution around your scope tube, preventing localized pressure points that could affect optical performance...

KONUSTART-900B Refractor Telescope D60 – Reliable Choice for Growing Astronomy Enthusiasts The KONUSTART-900B Refractor Telescope D60 stands out as an excellent choice for astronomy enthusiasts ready to move beyond basic beginner models. Available at Professional Optics in Split, Croatia, with shipping throughout Europe, this telescope offers enhanced optical performance, greater versatility, and robust construction—making it ideal for those seeking a more immersive and rewarding stargazing experience.Verified Technical SpecificationsOptical DesignRefractor – utilizes precision lenses for sharp, color-accurate images with minimal distortion.Aperture60 mm – gathers ample light for detailed observation of celestial and terrestrial objects.Focal Length900 mm – provides higher magnification potential and improved image resolution, especially for lunar and planetary targets.Focal Ratiof/15 – delivers excellent contrast and detail, ideal for observing fine features on the Moon and planets.Mount TypeAlt-azimuth – smooth, intuitive movement for easy object tracking and stable positioning.TripodReinforced aluminum tripod – ensures stability and vibration reduction during observation.EyepiecesTypically includes two (e.g., 10 mm and 25 mm) – supports a wide range of magnifications for different viewing needs.Diagonal Mirror90° diagonal – allows comfortable viewing, especially for high-elevation targets.Finderscope5x24 optical finderscope – assists in quick and accurate target acquisition.AccessoriesIncludes user manual, lens cleaning cloth, and additional accessories for a comprehensive setup.Key Practical BenefitsSuperior Optical Clarity: The long 900 mm focal length and 60 mm aperture work together to deliver crisp, high-contrast images, making it easier to discern lunar craters, Saturn’s rings, and subtle planetary details.Versatile Magnification: With two included eyepieces, users can easily switch between wide-field and high-power views—ideal for both deep-sky scanning and close-up planetary observation.Stable Observation Platform: The reinforced aluminum tripod minimizes vibrations, ensuring steady, clear images even at higher magnifications.User-Friendly Design: The alt-azimuth mount offers intuitive navigation, making it simple to follow objects as they move across the sky.Use CasesLunar Exploration: Observe the Moon’s surface in remarkable detail, from prominent craters to subtle rilles and mountain ranges.Planetary Viewing: Enjoy sharp views of Jupiter’s cloud bands and moons, Saturn’s rings, and the phases of Venus.Terrestrial Observation: The KONUSTART-900B excels in daytime use as well, providing clear, detailed views of distant landscapes, wildlife, or ships at sea.Educational and Family Use: Its advanced yet accessible features make it suitable for both personal study and shared learning experiences.Why the KONUSTART-900B Is Ideal for Enthusiastic BeginnersEnhanced Performance Over Entry-Level Models: The extended focal length and robust build provide a noticeable upgrade in image quality and usability compared to basic starter telescopes.Comprehensive Accessory Kit: Everything needed for a successful observing session is included, minimizing the need for additional purchases.Long-Term Value: As skills and interests grow, the KONUSTART-900B remains capable—supporting more advanced exploration without the need for immediate replacement.Accessible Yet Aspirational: This model bridges the gap between beginner and intermediate telescopes, offering an inspiring introduction to serious amateur astronomy.Ease of Setup and UsageAssembly is straightforward: mount the telescope on the tripod, attach the diagonal and eyepiece, and align with the finderscope. The included manual provides clear, step-by-step guidance, ensuring a smooth start. The alt-azimuth mount and ergonomic controls allow for quick adjustments and comfortable, prolonged viewing sessions—ideal for both solo and group observations.Choose the KONUSTART-900B Refractor Telescope from Professional Optics Split for a more advanced, inspiring introduction to the cosmos—delivering clarity, versatility, and lasting value for passionate observers across Europe...

KONUSTART-700B Refractor Telescope D60 – The Perfect Gateway to AstronomyExperience the night sky like never before with the KONUSTART-700B Refractor Telescope D60, expertly crafted for beginner astronomy enthusiasts. Available at Professional Optics in Split, Croatia, with shipping throughout Europe, this model combines reliable optical performance, user-friendly features, and a robust build—making it an ideal starting point for anyone eager to explore the universe.Verified Technical SpecificationsOptical DesignRefractor – utilizes high-quality lenses for crisp, color-accurate images.Aperture60 mm – gathers more light than typical entry-level scopes, enabling brighter, clearer views.Focal Length700 mm – delivers a balanced combination of magnification and wide field of view.Focal Ratiof/11.7 – ideal for detailed lunar and planetary observation, with minimal chromatic aberration.Mount TypeAlt-azimuth – intuitive up/down and left/right movement for easy object tracking.TripodSturdy aluminum tripod – offers stability and portability for home or field use.EyepiecesTypically includes two (e.g., 10 mm and 20 mm) – allows for varied magnification options.Diagonal Mirror90° diagonal – ensures comfortable viewing, especially for high-altitude objects.Finderscope5x24 finderscope – helps quickly locate celestial and terrestrial targets.AccessoriesIncludes user manual and additional accessories for a complete beginner experience.Key Practical Benefits for BeginnersEnhanced Light Gathering: The 60 mm aperture provides noticeably brighter and sharper images than standard 50 mm beginner models, making it easier to spot lunar craters, Saturn’s rings, or distant terrestrial objects.Versatile Magnification: Multiple eyepieces and a long focal length enable a range of magnifications, allowing users to adapt to various targets and observing conditions.Stable and Portable: The lightweight yet sturdy aluminum tripod ensures steady views and easy transport, whether observing from a balcony, backyard, or countryside.Intuitive Operation: The alt-azimuth mount is straightforward to use, enabling smooth tracking of celestial objects without a steep learning curve.Use CasesLunar Observation: Explore the Moon’s craters, maria, and phases in impressive detail—ideal for both solo study and family viewing sessions.Bright Planets: Observe Jupiter’s moons, Saturn’s rings, and the phases of Venus with clarity, thanks to the scope’s high-quality optics and stable mount.Terrestrial Viewing: The KONUSTART-700B is equally suited for daytime use, offering clear views of landscapes, wildlife, and distant landmarks.Educational Exploration: Perfect for introducing children or adults to the basics of astronomy and optics in an engaging, hands-on way.Why the KONUSTART-700B Is Ideal for BeginnersBalanced Performance: The 60 mm aperture and 700 mm focal length provide an optimal mix of brightness, detail, and ease of use, supporting a wide range of observing interests.Complete Starter Kit: With essential accessories included, new astronomers have everything they need to begin exploring right out of the box.Reliable, Trustworthy Brand: KONUS is recognized for producing quality optical instruments tailored to entry-level users, ensuring a positive and frustration-free experience.Accessible Price Point: This model offers professional-grade features at a price accessible to families, students, and hobbyists.Ease of Setup and UsageSetting up the KONUSTART-700B is quick and straightforward: assemble the tripod, attach the telescope, insert an eyepiece, and use the finderscope to locate your target. The included manual provides clear, step-by-step instructions, so even first-time users can be observing within minutes. Focusing and tracking are intuitive, allowing you to concentrate on discovery rather than equipment.Choose the KONUSTART-700B Refractor Telescope from Professional Optics Split and begin your astronomical adventure with clarity, confidence, and the support of a trusted optics specialist...

AGM Rattler V2 50-640 Thermal SightAGM Rattler V2 50-640 is a thermal sight developed for shooters who need higher sensor resolution, practical base magnification, and dependable field performance in one compact housing. It uses a 640×512 thermal sensor, a 50 mm germanium lens, 2.5× base magnification, and offers detection range up to 2600 m, making it a serious option for hunting and observation at extended distances.This model stands out because it combines a premium 640-resolution sensor with a slightly narrower field of view and stronger base magnification than lower-magnification alternatives. That makes it especially useful when the user expects longer shot distances and wants a more confident image on smaller or more distant heat signatures.The Rattler V2 50-640 is built for real outdoor use, with a compact format that fits well on hunting rifles and tactical platforms. It is designed for users who want a dedicated thermal optic that is straightforward to install, practical to zero, and strong enough for regular field work in changing weather and terrain conditions.This unit comes with a standard Weaver mount, while the ADM QR mount is not included. For Professional Optics customers, it is a strong thermal option at competitive prices with delivery across Europe from Split, Croatia.Technical specifications AGM Rattler V2 50-640SpecificationValueModelAGM Rattler V2 50-640 Product typeThermal sight Thermal resolution640 × 512 Objective lens50 mm germanium Base magnification2.5× Detection rangeUp to 2600 m Field of view8.8° × 7.0° Thermal sensitivitySub-20 mK Mount includedStandard Weaver mount ADM QR mount includedNo Installation and useAGM Rattler V2 50-640 is supplied with a standard Weaver mount, so installation is straightforward on compatible rifles and platforms. Since the ADM QR mount is not included, users who specifically want a quick-release mounting solution need to select it separately.In practice, the 2.5× base magnification and 50 mm lens make this version better suited to longer-range work than wider-angle thermal models with lower starting magnification. That setup gives the user a more focused image for identification and shot placement when distance matters more than maximum close-range field coverage.Maintenance is simple and typical for a field thermal optic. The main priorities are keeping the germanium lens clean, checking mount security after recoil exposure, and storing the unit properly between hunting sessions.FAQWhat mount is included with AGM Rattler V2 50-640?It comes with a standard Weaver mount.Is the ADM QR mount included?No. The ADM QR mount is not included.What sensor resolution does it use?It uses a 640 × 512 thermal sensor.What magnification does it offer?It offers 2.5× base magnification.What is the detection range?The stated detection range is up to 2600 m.What lens does it use?It uses a 50 mm germanium lens.Is it suitable for hunting?Yes. Its higher base magnification and long detection range make it well suited to hunting and longer-range thermal observation...

NVECTECH DEFENDER 319 Thermal Rifle Sight19mm F0.8, 1200m detection, 384×288px VOx sensor (≤20mK), 50Hz, 1024×768 AMOLED. 1.8x optical + 5x digital zoom. 18+ h battery, USB Type-C. Picatinny rail standard. GPS/compass/azimuth/altitude/temperature. AI rangefinder + ballistic calculator + 5 zeroing profiles.1200m Detection – Practical Reality1200m detects thermal signature (0.3m human body). 800m clearly identifies species/behavior. Engagement reality: 1200m detection enables target confirmation from secure position. Close distance for actual shooting or use digital zoom. DEFENDER 319's 1200m more valuable for reconnaissance than direct engagement.Picatinny Rail – Universal StandardAR-15, AK-pattern, most modern rifles compatible. Direct installation, no adapters. NATO 20mm rail standard ensures universal fit. Eye relief 45mm typical rifle stock positioning.RAV Technology – Automatic Zero CompensationDetects recoil impulse. Automatically compensates scope zero after each shot. Eliminates traditional "return to zero" verification. Zero remains stable across multiple shots/recoil cycles.5 Independent Zeroing ProfilesProfile 1: 100m zero, .308 Winchester, rifle #1Profile 2: 300m zero, same cartridgeProfile 3: Different ammunition brand, rifle #1Profile 4: AR-15 platform alternative weaponProfile 5: Reserve test configurationInstant mid-field profile switching. No recalibration required. Switch between weapons without zeroing uncertainty.Ballistic Calculator WorkflowSetup (one-time): Input ammunition specs (bullet weight, velocity, ballistic coefficient). Save mounting height. Temperature/altitude automatic via sensors.Engagement: Aim at target. Activate AI rangefinder. Distance calculated. Ballistic calculator displays red triangle (holdover correction). Aim triangle at vital zone. Fire.Advantage: No external app, no manual math, decision made in seconds not minutes.AI Rangefinder AccuracyThermal image analysis calculates distance based on target thermal intensity pattern. ±50m accuracy at 1200m (4% error). More precise at closer ranges (<5m error at 500m). Manual distance input available for verification/targets beyond range.Picture-in-Picture DisplayPrimary image: Full thermal scan of hunting area. Magnified inset: 3x magnified center point (precise aiming). Toggle between views without losing thermal image. Scout wide area, zoom for precision, return to wide for situational awareness.Military-Grade Sensor IntegrationGPS: Waypoint marking kill locations/terrain hazards. Compass: Bearing to distant targets (team communication). Altitude: Automatic density altitude correction in ballistics. Temperature: Thermal calibration reference. Gyroscope: Prevents ballistic calculation during weapon instability—waits for stable platform.GEO Dot: Geographic coordinates display on-screen. OSD Recording: Records reticle + calculations + rangefinder + waypoints. Complete engagement documentation for analysis.Video & Recording384×288px 50Hz thermal video (20-30 hours on 64GB storage). HDMI simultaneous output for external recorders. USB export without proprietary software. Post-mission review capability immediate.18+ Hour BatteryContinuous tactical operation proven rating. USB Type-C charging (standard phone chargers/power banks). Field-replaceable 18650 cells (standard retail batteries, not proprietary).SpecificationsParameterValueObjective19mm F0.8Detection Range1200mRecognition Range800mSensorVOx 384×288NETD≤20mKMagnification1.8x optical + 5x digitalField of View13.8° × 10.4°Display0.39" AMOLED 1024×768Eye Relief45mmReticles7 typesReticle ColorsBlack, white, yellow, blue, green, red, autoRangefinderAI thermal (±50m at 1200m)Ballistic Profiles5 independentZeroing Adjustment±100 MOA per profile..