Rusan HIKMICRO Clamp – Fits 51.5mm Objective Lens
(Thunder 2.0 & 3.0 Compatible)
The Rusan HIKMICRO Clamp Adapter is the perfect solution for shooters and hunters who want a fast, reliable way to mount their thermal or night-vision clip-on device to a day scope. Designed for precision and durability, this high-quality clamp securely attaches to your riflescope’s objective lens, allowing seamless integration with compatible HIKMICRO devices such as the Thunder series. Its modular design ensures perfect alignment and repeatable accuracy every time you attach or remove your device, eliminating point-of-impact shift. With a quick-release system and multiple size options to fit different scope diameters, the Rusan clamp delivers rock-solid performance, fast installation, and confidence in the field—day or night.
-Nathan (Technical Advisor)
The Rusan HikMicro Clamp is a precision-engineered mounting solution designed specifically for use with the HIKMICRO Thunder 2.0 and 3.0 thermal attachments. This model is tailored to fit devices with a 51.5mm objective lens.
Featuring the trusted Rusan quick-release system, the clamp allows for fast, tool-free attachment and removal, making it ideal for field use where reliability and ease of operation are essential. Crafted from high-quality materials, it delivers excellent durability and performance in all weather conditions.
- Rusan HIKMICRO Clamp – Fits 51.5mm Objective Lens (Thunder 2.0 & 3.0 Compatible)
1. What is the Rusan HIKMICRO Clamp used for?
The clamp is an adapter that allows you to attach a thermal or night-vision clip-on device to the objective lens of a riflescope quickly and securely.
2. Which devices is the clamp compatible with?
It is designed for HIKMICRO clip-on devices, especially models in the Thunder series, using the M52 × 0.75 thread system.
3. Will the clamp affect my rifle’s zero?
No. The system is engineered to eliminate point-of-impact shift, meaning your accuracy remains consistent even after removing and reattaching the device.
4. How is the clamp installed?
Installation is simple—slide the clamp onto the objective lens and secure it using the tightening mechanism or lever system. Some models may require an Allen key for initial setup.
5. What sizes are available?
Rusan clamps are available in several diameters (such as 46 mm, 48 mm, 52 mm, 54 mm, 57 mm, 60 mm, 64 mm, and 65 mm) to match different riflescope objective sizes.
6. How do I choose the correct clamp size?
Measure the outer diameter of your riflescope’s objective lens with calipers to ensure you select the correct clamp size.
7. Is the clamp durable for outdoor use?
Yes. The clamp is built with robust materials designed to withstand harsh outdoor conditions and frequent use.
8. Can the clamp remain on my riflescope permanently?
Yes. Many users leave the main adapter attached to the scope so clip-on devices can be mounted or removed quickly when needed.
9. Does the clamp protect my scope from scratches?
Yes. The interior often features a protective lining that improves grip while preventing damage to your scope’s finish.
10. Who typically uses the Rusan HIKMICRO Clamp?
It is commonly used by hunters, wildlife observers, and professionals who rely on thermal or night-vision optics for low-light observation and shooting.
Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.
Please Note: Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
Please Note: DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY - READ MORE: HERE
COURIERS
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We use DPD , RoyalMail, TNT and UPS courier services for all our orders whether dispatching to the UK or International. As soon as your order has been dispatched you will receive an email with your unique tracking number. We are unable to add delivery notes to your order regarding safe spaces or neighbour deliveries. If you require this service it can be arranged directly with the courier once the parcel is in their network.
IN-STORE ITEMS
These are items that we have in-stock and will be sent out for delivery as soon as possible. We aim to dispatch all orders within 1-2 working days, but during busy periods dispatch may be delayed by a day or so. If you would like to purchase the item in person then please call ahead to arrange an appointment: 01803 611 895.
PRE-ORDER ITEMS
These are usually items that are going to be out-of-stock for a number of weeks or are in short supply. By purchasing a Pre-Order Item you are in effect paying a deposit for your goods. As soon as the item is back in stock yours will be dispatched within 24 hours where possible. Please see individual product pages for current back-in-stock dates. In rare occasions, these dates can be changed by the manufacturers so we recommend staying in contact with Optics Warehouse depending on the product lead time.
INTERNATIONAL DELIVERY & TAXES
In addition to the above information If your delivery address is outside of the UK you may be subject to import duties and taxes, which are levied once a shipment reaches your country. Any such additional charges for customs clearance must be borne by you. You should note that customs policies vary widely from country to country. Optics Warehouse advises each customer to contact their local customs office for further information if they are in any way unsure of local duties or liabilities. Cross border shipments are subject to opening and inspection by customs authorities which means some packages may be opened and re-sealed.
NEED HELP?
If you require any further assistance, please call us on 01803 611 895 or email sales@opticswarehouse.co.uk
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A NOTE ABOUT DPD SHIPMENTS:
- Please be advised that we have now introduced DPD Pins to all DPD orders from Optics Warehouse.
- If your shipment is being sent from Optics Warehouse via DPD you will be sent a Pin Code that must be shown to the courier upon delivery.
- The pincode is sent VIA email & TEXT message. A valid email address and mobile number must be provided at checkout. Emails will be sent from "Riviera House 3PL" - if you do not receive this email please check your junk or spam folders.
- Please note that if you do not display your pin code to the courier driver upon delivery, you will not be able to have your item and you may need to schedule another delivery date to show a valid pin.
- Please view the attached slides HERE for further information!

















