Magne-Tech 30-38.5mm 3x Magnetic Ring Mount Part B Only (Female)

• Ring Diameter Compatibility 30–38.5mm
• Mount Type Magnetic ring mount (Part B – Female)
• Mounting Interface Designed for Magne-Tech 3-Magnet Picatinny Rail Mount
• Material 7075-T6 billet aluminium
• Finish MIL-A-8625 Type III hard coat anodised
• Return to Zero Tolerance Within 0.25 MOA

• Rare-earth magnetic mounting technology for secure and repeatable optic attachment
• Quick-detach functionality for rapid scope changes without loss of zero
• Designed for use with the Magne-Tech 3-Magnet Picatinny Rail Mount
• Patented magnetic mounting system for precise and consistent alignment
• Patent-pending dual-redundant locking system for enhanced security under recoil
• Return-to-zero capability within 0.25 MOA after removal and reattachment
• Extended mounting design for improved scope positioning and optimal eye relief
• Compatible with a wide range of 30–38.5mm scope tubes
• Built to meet mil-spec standards for demanding tactical and field use
• Lightweight yet highly durable construction for long-term reliability

• Magnetic Ring Mount (Female)
• 2.5mm Allen Key

1. How reliable is the "Return-to-Zero" when swapping optics? Magne-Tech systems are engineered for surgical precision, offering a guaranteed return-to-zero within 0.25 MOA. Because the system uses three high-strength magnetic contact points to guide the mount into a consistent, repeatable position, you can swap between a day scope and a thermal unit (or between different rifles) without the need for a trip to the range to re-zero.

2. Will the magnets hold up under heavy recoil from large caliber rifles? Absolutely. While the magnets provide the initial "snap" and alignment, the system features a patented dual-redundant locking mechanism. The rare-earth magnets offer over 15 lbs of retention on their own, but the mechanical locks ensure the optic remains rock-solid even under the violent recoil of magnum calibers or during rugged tactical maneuvers.

3. What is the difference between "Part A" and "Part B"? Think of it as a plug and a socket:

• Part A (Male/Receiver): This is the base that stays permanently attached to your rifle's Picatinny rail.

• Part B (Female/Ring Mount): This is the ring set that stays attached to your scope tube (available in 1", 30mm, or 34mm).

• To use the system, you need at least one of each. If you have one rifle but three different scopes, you would buy one Part A and three Part B mounts.

4. Are these mounts heavy? I’m worried about adding bulk to my setup. Despite their strength, Magne-Tech mounts are surprisingly lightweight. They are CNC-machined from 7075-T6 billet aluminum—the same high-grade alloy used in aircraft and high-end receivers. This provides the durability of steel at a fraction of the weight, and the MIL-A-8625 Type III hard coat anodized finish ensures they are scratch and corrosion-resistant.

5. Can I use a 30mm "Part B" ring with a 34mm "Part A" receiver? Yes! One of the best features of this system is its universal compatibility. As long as you are using the 38.5mm height series, the Part A receiver base is the same across the board. You can swap a 1" scope, a 30mm scope, and a 34mm scope onto the exact same Part A base on your rifle without any compatibility issues.

• Magne-Tech Lifetime Warranty

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

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!