Magne-Tech 30-38.5mm 3x Magnetic Ring Mount Part B Only (Female)
The Magne-Tech 30-38.5mm Magnetic Ring Mount and Receiver Complete Set is the gold standard for shooters demanding rapid adaptability and surgical precision. This all-in-one kit includes both the Part A male receiver and Part B female ring mount, providing a seamless "snap-in" mounting experience for 30mm scope tubes. By combining rare-earth magnetic technology with a patented dual-redundant locking mechanism, Magne-Tech ensures your optic stays secure under heavy recoil while maintaining a 0.25 MOA return-to-zero. Perfect for tactical, competition, or hunting applications, this set eliminates the need for re-zeroing when switching between different rifles or optics. - George
Enhance your optics setup with the Magne-Tech 30–38.5mm 3x Magnetic Ring Mount Part B Only (Female), a precision-engineered solution designed for serious shooters. Manufactured by Magne-Tech, this ring mount utilises advanced rare-earth magnetic technology to deliver secure, repeatable performance when paired with the Magne-Tech 3-Magnet Picatinny Rail Mount. Its quick-detach functionality allows rapid attachment and removal of your riflescope without loss of zero, making it ideal for transitioning between day, night and thermal optics.
Machined from 7075-T6 billet aluminium and finished with MIL-A-8625 Type III hard coat anodising, the mount offers exceptional strength while remaining lightweight. The patented magnetic mounting system and patent-pending dual-redundant locking system ensure your scope remains firmly secured under demanding conditions. Built to meet mil-spec standards, it is engineered to withstand the rigours of tactical, competitive and hunting environments.
Designed for versatility, this 30–38.5mm ring mount accommodates a wide range of scopes and offers extended mounting capability for optimal eye relief and positioning. Critically, it provides a return-to-zero performance within 0.25 MOA after detachment and reattachment, delivering dependable, repeatable accuracy shot after shot. Robust, adaptable and highly precise, it is an essential component for shooters who demand confidence in every engagement.
- 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:
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Part A (Male/Receiver): This is the base that stays permanently attached to your rifle's Picatinny rail.
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Part B (Female/Ring Mount): This is the ring set that stays attached to your scope tube (available in 1", 30mm, or 34mm).
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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
Tactical Scope Shipping Policy
Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.
Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
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Couriers
We use DPD, Royal Mail, TNT, and UPS courier services for all our UK and international orders. Once your order is dispatched, you will receive an email with your unique tracking number.
In-Store Items
These are items we have in stock and aim to dispatch within 1–2 working days. During busy periods, this may be delayed slightly. If you'd prefer to collect your item in person, please contact us in advance to arrange. Collection orders must be paid for beforehand.
Pre-Order Items
Pre-order items are typically out-of-stock or in limited supply. Purchasing a pre-order secures your item, and it will be dispatched within 24 hours of restock where possible. Check the product page for estimated restock dates. These dates may change, so staying in touch is advised.
International Delivery & Taxes
If your shipping address is outside the UK, you may incur import duties or taxes upon arrival in your country. These charges are your responsibility. Customs regulations vary, so please check with your local customs office. Some packages may be opened for inspection.
Need Help?
If you need assistance, call us at +44 (0)1803 611895 (Optics Warehouse) or email [email protected].
DPD Shipments & PIN Code Delivery
We have now introduced DPD Pin Code verification for all orders shipped via DPD. You will receive a PIN via email and text.
A valid email and mobile number must be provided at checkout. Emails will come from Riviera House 3PL. Please check spam/junk folders if not received.
Failure to present your PIN to the delivery driver will result in a failed delivery and rescheduling may be required.

