Spuhr ISMS QDP-6016 Ø36mm Tube 0 MIL (34 mm High) Cantilever Quick Detach Picatinny Scope Mount

Spuhr ISMS QDP-6016 36mm High (38mm) Quick Detach 0 MOA Cantilever Mount

Picatinny mount for use on AR10 rifles

Rings: 36 mm
Tilt: 0 MIL/MOA
Height: 38 mm/1.5”
Length: 151 mm/5.94” (mount body only)
Weight: 289 g/10.2 oz
Interfaces: 8 sets
EAN: 7340150705275

10-degree wedge included

• 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.

How does the mount handle the additional mass of large 36mm tube scopes?
Large 36mm scopes place greater inertial loads on the mount during recoil and transport. The rigid one-piece structure distributes these loads evenly across the rail interface, preventing localized stress that could lead to movement or alignment changes.

Does a larger scope tube diameter require different torque practices?
Maintaining consistent torque becomes more important with larger diameter tubes because uneven compression can create subtle distortions. Using a calibrated torque wrench ensures even clamping pressure and helps preserve smooth turret tracking.

How does optic weight affect return-to-zero consistency with this mount?
Heavier optics increase the load on the cam-lock interface, making consistent lever tension especially important. When properly adjusted, the mount maintains reliable return-to-zero even with large tactical optics.

Does the mount reduce the risk of tube deformation in large precision scopes?
The coaxial ring alignment provided by the monolithic construction minimizes bending forces on the scope tube. This is particularly beneficial for large 36mm optics where tube stiffness varies between manufacturers.

How sensitive is the QD interface to rail dimensional variation?
Small differences in Picatinny rail geometry can influence how the mount seats against the recoil surfaces. Consistently using the same rail slots helps maintain predictable positioning and repeatable zero.

Can the mount maintain alignment with heavy accessory loads attached?
The integrated structure distributes accessory loads across the mount body rather than concentrating stress at individual rings. Moderate accessory weight generally has no measurable effect on optical alignment.

Does repeated removal accelerate wear on the cam-lock system?
The cam surfaces are designed to withstand many installation cycles without significant wear. Regular cleaning of contact surfaces helps maintain smooth operation and consistent clamping force.

How does rail interface engagement resist recoil-induced movement?
The mount engages the forward faces of the Picatinny slots to resist recoil forces. This mechanical engagement works together with clamping friction to prevent forward creep during repeated firing.

Can improper lever tension affect precision at long range?
Inconsistent lever preload can allow small variations in mount seating position. These small changes can become noticeable at extended distances where minor alignment differences translate into measurable point-of-impact shifts.

How does mount rigidity affect optical tracking consistency?
A rigid mount maintains a stable optical axis relative to the bore during recoil and vibration. This stability helps ensure that turret adjustments correspond accurately to point-of-impact changes.

Does mounting position influence system stability with large optics?
Placing the mount fully on a rigid receiver rail reduces the potential for flex-induced shifts. Mounting across separate rail sections may introduce small alignment changes under recoil.

How does the mount behave under repeated recoil cycles?
The structure distributes recoil loads across multiple contact surfaces, preventing progressive movement. Properly installed mounts typically maintain zero through extensive firing cycles.

Can ring torque influence parallax adjustment behavior?
Uneven ring pressure can slightly distort the scope tube and affect the smoothness of internal adjustments. Consistent torque helps ensure predictable parallax and magnification operation.

Does the mount help prevent reticle cant caused by movement?
The rigid ring alignment helps maintain the rotational orientation of the scope tube. Once properly leveled and torqued, the mount resists rotation even under heavy recoil.

How does the mount respond to environmental temperature changes?
Uniform thermal expansion maintains the relative alignment between rings and base. Environmental temperature shifts generally produce negligible influence on zero stability.

Can debris between the mount and rail affect repeatability?
Foreign material between the mount and rail can prevent full seating against the recoil surfaces. Even small particles can introduce slight alignment differences that affect return-to-zero performance.

How resistant is the mount to impact during transport or field use?
The monolithic structure spreads impact forces throughout the mount body. This reduces the likelihood of ring misalignment or permanent deformation following moderate impacts.

Does the mount require periodic maintenance?
Routine inspection of lever tension and ring screw torque is recommended for long-term reliability. Keeping the rail interface clean also helps preserve consistent mounting behavior.

Can rail wear influence long-term consistency?
Wear on softer aluminum rails can gradually change the way the mount seats under clamping pressure. Monitoring rail condition helps maintain repeatable installation.

Does the mount prevent scope movement under heavy recoil?
Properly torqued rings generate sufficient friction to prevent axial scope movement. Clean contact surfaces are important to maintain this retention over time.

How does the mount resist torsional forces from large optics?
Wide ring spacing and a rigid base help resist twisting forces created during recoil. This keeps the reticle aligned with the bore axis and preserves zero stability.

Can lever adjustment change point of impact?
Changing lever tension alters clamping preload and can slightly change the mount’s seating position. Any adjustment should be followed by zero verification.

Does repeated installation affect ring alignment?
Ring alignment is maintained because the rings are machined into a single structure. Removal and reinstallation do not alter the internal ring geometry.

How does mount stiffness influence shot-to-shot consistency?
A stiff mounting interface minimizes micro-movement between the optic and rifle during recoil. This contributes to consistent point-of-impact behavior across firing strings.

What installation factors most influence long-term reliability?
Consistent torque values and proper lever adjustment are the most important factors in maintaining stability. Clean rail contact surfaces and consistent slot placement also play a major role.