Spuhr ISMS QDP-7002 Ø40mm Tube 0 MIL (38 mm High) Quick Detach Picatinny Scope Mount
"Built for massive 40mm tube optics, this Spuhr QDP mount provides uncompromising strength and alignment for today’s ultra-high-end scopes. The 38mm height works perfectly with large objectives and modern precision rifle ergonomics, while the QD system allows reliable optic removal without losing zero. If you’ve invested in a 40mm scope, this is the mount that lets it perform at its full potential." - Thomas (Online Sales Associate & Product Specialist).
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The Spuhr ISMS (Ideal Scope Mount System) is a high-performance mounting solution engineered for shooters who demand unmatched stability, precision, and modular versatility. Its single-piece, billet-machined aluminium construction provides exceptional rigidity, virtually eliminating flex under recoil and ensuring repeatable zero for long-range, tactical, and competition applications.
The system’s diagonally split rings give unobstructed access to elevation and windage turrets, allowing fast and precise adjustments without interference. An integrated levelling system and alignment wedge ensure the optic is perfectly level during setup, critical for extreme-range accuracy and consistent shot placement.
Multiple interface points along the mount allow secure attachment of a wide range of accessories, from lasers and rangefinders to backup optics and night-vision devices, without affecting rifle balance or ergonomics. Machined from aerospace-grade aluminium and finished with hard-anodised coating, the ISMS offers exceptional durability, corrosion resistance, and mechanical integrity under heavy recoil and field conditions.
With its combination of precision machining, modular functionality, and rock-solid strength, the Spuhr ISMS is designed to elevate any rifle platform, providing a foundation for accurate, repeatable, and adaptable long-range performance.
Ring Height - 38mm
- 0 MIL/0 MOA
- Height: 38 mm/1.5”
- Length: 126 mm/4.96” (mount body only)
- Weight: 288 g/10.2 oz
- 10-degree wedge included
Please Note: Will not fit new style IOR Terminator with stepped tube.
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Monolithic one‑piece construction - CNC‑machined from a single billet of aerospace‑grade aluminium to eliminate tolerance stacking, flex, and ring misalignment common in multi‑piece mounts.
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High‑rigidity structural geometry - Optimised cross‑section and material distribution provide exceptional torsional and vertical stiffness, maintaining optic alignment under heavy recoil and dynamic loading.
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Hard‑anodised surface treatment - Type III hard anodising delivers excellent abrasion resistance, corrosion protection, and a non‑reflective tactical finish.
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Diagonal ring split design - Improves load distribution around the scope tube while keeping elevation and windage turrets fully accessible, preventing obstruction during adjustment.
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Integrated scope levelling system - Built‑in bubble level allows the shooter to reference rifle cant and optic alignment directly on the mount for precise long‑range shooting.
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Multi‑axis accessory interface - Machined mounting points on multiple faces of the mount support direct attachment of optical and electronic accessories without adding separate rails.
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Low‑profile accessory mounting - Keeps mounted devices close to the bore axis and centre of mass, preserving rifle balance and minimising parallax and offset errors.
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Precision‑cut recoil lugs and rail interface - Provides repeatable, slip‑free engagement with Picatinny rails for consistent return‑to‑zero performance.
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High‑strength fastener system - Torque‑optimised fasteners maintain clamping force under vibration and recoil, preventing optic movement or zero shift.
- Designed for extreme‑range precision - Engineered to support the mechanical and optical demands of ELR, PRS, and professional long‑range shooting platforms.
- Spuhr ISMS QDP-7002 40mm High (38mm) Quick Detach 0 MOA Picatinny Mount.
How does the QDP‑7002 support the heavier weight of 40 mm optics?
The one‑piece aluminium body and large ring surface area distribute load evenly, preventing flex or ring distortion.
Why is 0 MOA important with very large‑tube scopes?
These scopes already have enormous internal travel, so keeping the mount flat preserves symmetrical elevation and windage adjustment.
Does the larger tube affect vibration under recoil?
Yes - the thicker tube walls dampen vibration, and the rigid Spuhr mount prevents resonance from transferring into the optic.
How does the QDP system ensure repeatable zero with such a large optic?
The cam‑locking interface clamps against multiple rail surfaces, keeping the mount indexed in the exact same position every time.
How does the 38 mm height influence eye alignment?
It works well with modern chassis rifles and tall cheek risers, giving a natural head position without excessive neck tilt.
Is tube distortion a concern with 40 mm rings?
Only if torque is incorrect - Spuhr’s wide rings and precise machining prevent pinching when properly installed.
How does this mount affect long‑range tracking accuracy?
The rigid interface keeps the erector system square, so elevation changes remain linear even at extreme dial values.
Can this mount support large objective lenses?
Yes. The height and forward rail clearance allow large lenses and sunshades without interference.
How does the mount handle thermal expansion during long firing sessions?
The aluminium body expands evenly, preserving ring alignment and maintaining zero.
Does the mount support accessory attachment?
Yes. The ISMS interface allows mounting of lasers, rangefinders, and red dots directly to the mount body.
Is this mount suitable for ELR shooting?
Yes. The 40 mm tube and rigid mount provide the stability and adjustment range required for extreme long‑range applications.
How does rail wear affect QDP performance on this model?
The cam system self‑adjusts slightly, maintaining proper clamping force even if the rail has minor wear.
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.
DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY – READ MORE: HERE
Note: The above DPD link is to our group partner site Optics Warehouse, with whom we share logistics and stock. Link opens in a new window.
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.