Spuhr ISMS QDP-4002 Ø34mm Tube 0 MIL (38 mm High) Quick Detach Picatinny Scope Mount

SKU#QDP-4002 Spuhr

Spuhr ISMS QDP-4002 Ø34mm Tube 0 MIL (38 mm High) Quick Detach Picatinny Scope Mount

Name: Spuhr ISMS QDP-4002 Ø34mm Tube 0 MIL (38 mm High) Quick Detach Picatinny Scope Mount
Brand: Spuhr
Price: 439.99 GBP
Availability: OutOfStock

Available soon Notify me when back in stock

The Spuhr ISMS (Ideal Scope Mount System) is a premium mounting solution engineered for shooters who require unmatched stability, precision and modular versatility. Its single-piece billet-machined aerospace-grade aluminium construction delivers exceptional rigidity and repeatable zero retention under recoil. Featuring diagonally split rings, an integrated levelling system and multiple accessory interfaces, it ensures accurate optic alignment and flexible equipment mounting. With a 38mm ring height, the ISMS provides a durable, reliable platform for long-range, tactical and competition shooting.

VIEW PRODUCT INFO / SPECS

Select Type: 34mm High (38mm) 0 MOA

34mm High (38mm) 20.6 MOA

34mm Medium (34mm) 0 MOA

34mm High (38mm) 0 MOA

34mm High (38mm) 1.57" Offset 20 MOA

34mm High (38mm) 0 MIL

Whilst we aim to dispatch in-stock items within 1 working day, please be aware that during busy periods dispatch of in-stock items may be delayed by up to 2 working days. Authorised UK Retailer

WHY BUY FROM US?

PRICE MATCH

SWAP-OUT GUARANTEE

FAST DELIVERY

30 DAY RETURNS

UNMATCHED SERVICE

OBSIDIAN REWARDS

This mount is the go-to solution for shooters running premium 34mm optics who don’t need additional cant. The 38mm height provides excellent clearance for large objective lenses and night-vision clip-ons, while maintaining a comfortable, modern shooting position. With Spuhr’s bomb-proof QDP system and ultra-precise machining, it’s a mount you can rely on in competition, hunting, or duty use.

Thomas, Sales and Product Specialist Accomplished HFT shooter offering optics and trade-in advice. Practical guidance based on years of competitive shooting.

Product Information FIND OUT MORE

DESCRIPTION

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

SPECS

0 MIL/0 MOA
Height: 38 mm/1.5”
Length: 121 mm/4.76” (mount body only)
Weight: 267 g/9.4 oz
10-degree wedge included

FEATURES

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.
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.
Hard‑anodised surface treatment - Type III hard anodising delivers excellent abrasion resistance, corrosion protection, and a non‑reflective tactical finish.
Diagonal ring split design - Improves load distribution around the scope tube while keeping elevation and windage turrets fully accessible, preventing obstruction during adjustment.
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.
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.
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.
Precision‑cut recoil lugs and rail interface - Provides repeatable, slip‑free engagement with Picatinny rails for consistent return‑to‑zero performance.
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.

WHAT'S IN THE BOX

Spuhr ISMS QDP-4002 34mm High (38mm) Quick Detach 0 MOA Picatinny Mount.

FREQUENTLY ASKED QUESTION(S)

How does this mount behave on semi-automatic precision rifles?
The QDP-4002 handles the sharp, cyclic recoil of semi-autos very well because its one-piece body and wide rail engagement prevent micro-shifts between shots.

Why is the 38 mm height useful on modern rifle platforms?
It aligns well with the higher combs found on most precision chassis systems, reducing the need for excessive cheek riser adjustment and promoting a natural head position.

How does this mount affect eye relief consistency?
Because the scope is held rigidly in a fixed position relative to the rail, the shooter can maintain consistent eye relief across repeated mounting cycles.

Is this model well suited for heavy, high-magnification optics?
Yes. The 34 mm ring system and stiff one-piece construction provide the structural support needed for large, heavy scopes without inducing tube flex.

How does the QDP system help users who move optics between rifles?
The repeatable cam interface allows the mount to be transferred between Picatinny rails while preserving zero, assuming the rails are machined to standard dimensions.

How does this model compare to fixed Spuhr mounts in terms of rigidity?
The QDP mechanism adds convenience without sacrificing stiffness; once locked, it behaves like a fixed mount in terms of mechanical stability.

Is the QDP-4002 suitable for duty or field rifles?
Yes. The locking levers are protected from accidental release and the mount maintains zero even when removed for transport or maintenance.

How does the mount interact with Picatinny rail tolerances?
The cam-driven clamping system automatically compensates for minor rail width differences, ensuring consistent engagement and clamping pressure.

Does the mount affect barrel or action harmonics?
The rigid one-piece body minimizes vibration and movement of the optic relative to the action, reducing point-of-impact shift due to recoil-induced oscillations.

Can accessories be mounted directly to the QDP-4002?
Yes. Spuhr’s modular interfaces allow devices like red dots, lasers, and bubble levels to be attached to the mount rather than the scope tube.

How does this mount support clip-on optics?
The consistent alignment and moderate height make it ideal for night-vision and thermal clip-ons that require precise collinearity with the main optic.

Why is this model often chosen for tactical precision rifles?
It combines high rigidity, repeatable zero, and quick-detach capability in a configuration that suits modern optics and rifle ergonomics.

DELIVERY & RETURNS

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!

MOUNT SIZE GUIDE

Ring Height Calculator

This calculator works out the minimum ring height (base-to-centre) you should use, including a tolerance allowance.
Please note: All clearance calculations are based on mounts with 0 MOA. While MOA can be factored in, actual clearance may vary due to variables that can't always be accurately calculated. If you're considering an MOA mount and are unsure about the required height, we recommend contacting our sales team directly.

Scope Objective Outer Diameter (A)