ERATAC Block Mount Ø34/BH33.5/30MOA,RAL8000, Nut – one-piece block mount with screw clamping / nut system and 30 MOA pre-cant
If the mount isn't right, even a good scope becomes a factor of uncertainty.
ERATAC Block Mount Ø34/BH33.5/30MOA,RAL8000, Nut is an ERATAC mount with screw clamping for permanently mounted optics. It connects the scope and weapon as a defined interface – focusing on mounting height, tube diameter, clamping, and point of impact.
With ERATAC, the variant matters more than the name: tube diameter, mounting height, pre-cant, and clamping system must match the weapon, optic, eye relief, and application. 30 MOA theoretically creates an angular difference of approximately 87 cm at 100 m and is intended more for long-range setups than for short hunting weapons.
Important note for classification:
Before purchasing, tube diameter, mounting height, rail standard, pre-cant, eye relief, and clamping system must all match.
Before purchasing, check: Picatinny/Weaver rail, scope tube diameter, objective lens diameter, bolt/charging handle clearance, desired mounting height, 30 MOA pre-cant, and whether screw clamping/nut system is suitable for your setup.
What makes this product technically special:
✔ One-piece block mount: maximizes rigidity through a continuous base and reduces mounting errors.
✔ Screw clamping / nut system: useful for setups where the optic remains permanently on the weapon.
✔ High-strength aluminum / Mil-Spec Type III: structurally relevant for ERATAC mounts because mounting points must absorb recoil and clamping forces.
✔ UNIVERSAL interface: for compatible T4/T5 series, accessories such as spirit levels, SWK, or adapters can be mounted close to the optic.
✔ 30 MOA pre-cant: 30 MOA theoretically creates an angular difference of approximately 87 cm at 100 m and is intended more for long-range setups than for short hunting weapons.
Why this product?
This mount exists because the connection between glass and weapon must not be improvised. A scope must sit at the correct height, must not shift under recoil, and must be mounted in such a way that eye relief, stock weld, and weapon operation function correctly. T5 GEN-2 describes not just a model series, but a different operating logic: quick-release, permanently bolted solution, ultralight, or T7 with ERA-Grip.
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Clean optic position: Mounting height and tube diameter are selected via the variant; this prevents unnecessarily high or too low setups.
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Defined clamping: Screw clamping / nut system reduces improvisation on a safety- and precision-critical component.
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Plan usable pre-cant: 30 MOA must match the distance and the adjustment range of the scope.
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System accessories possible: depending on the series, spirit levels, SWK, or adapters can be integrated directly into the ERATAC interface logic.
Instructor's tip: Mounting errors begin before the first shot
Never mount a scope by eye alone. First, adjust the stock weld and eye relief, then determine the mounting height and position, then align the reticle and tighten the screws with the appropriate torque.
For pre-canted mounts, first check if your scope still has enough downward adjustment travel at your planned zeroing distance. 20 MOA is sensible for many long-range setups, but can be unnecessary at short distances with some optics.
After every mounting: not just tighten, but zero and document the point of impact. Repeatability is not theory – it only shows itself after removal, reattachment, and a control shot.
Our assessment
This one-piece block mount makes sense if you don't want to skimp on the connection between weapon and optic. It is particularly suitable for setups where point of impact, mounting height, and reproducible clamping are important: precision rifles, AR10/AR15 platforms, long-range optics, and hunting weapons with higher optic weight. It is less suitable if the variant does not exactly match the optic or if you are only looking for a simple, inexpensive standard mount for occasional use.
Suitable for:
- Precision and long-range setups with a carefully chosen pre-cant
- AR and bolt-action platforms with Picatinny/Weaver rail
- Hunting weapons with high-quality scopes and clear mounting height
- Users who consciously select ring diameter, mounting height, and clamping
Less suitable for:
- Optics with a different tube diameter than the selected variant
- Weapons without a suitable Picatinny/Weaver base
- Users who do not want to check mounting height and eye relief
- Setups where a cheaper, simpler mount is entirely sufficient
Direct classification:
✔ ERATAC Block Mount Ø34/BH33.5/30MOA,RAL8000, Nut: strong as a permanent set-and-forget mount with screw clamping.
✔ Quick-release lever: better if you want to remove the optic regularly or switch between setups.
The right choice depends not on the brand name, but on tube diameter, mounting height, pre-cant, and clamping system.
Application scenarios
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Long Range / Precision: Pre-cant and rigid mount help to utilize the optic's adjustment range effectively.
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Range and Training: reproducible mounting saves troubleshooting for point-of-impact deviations.
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Hunting bolt-action rifles: clean mounting height and eye relief are crucial for quick aiming.
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AR platforms: mounting height, charging handle clearance, and eye relief must function together.
Practical tip: Check objective lens clearance and head position in reality
Don't just check objective lens clearance in dry practice. Dust caps, attachments, neoprene covers, or a thicker barrel can suddenly make seemingly sufficient clearance tight.
If the mount is chosen very high, the head position changes. This can be useful with a helmet or hearing protection, but on classic hunting stocks it can lead to a "floating" head.
Features & Construction
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Series: T5 GEN-2 – determines clamping logic, weight, and accessory interface.
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Mount type: one-piece block mount – very rigid and positionally stable.
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Clamping system: Screw clamping / nut system – must match frequency of changes, platform, and working method.
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Pre-cant: 30 MOA – more pre-cant provides more elevation reserve, but does not replace a proper zero.
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Variant logic: Standard version.
Technical data
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Brand: ERATAC / Recknagel – mounts and accessories from German manufacturing.
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Product type: one-piece block mount – scope mount for Picatinny/Weaver platforms.
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Clamping system: Screw clamping / nut system – determines whether quick changes or permanent bolting is prioritized.
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Pre-cant: 30 MOA – 30 MOA theoretically creates an angular difference of approximately 87 cm at 100 m and is intended more for long-range setups than for short hunting weapons.
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Manufacturer/Item numbers: Standard: T5001-320A.
Scope of delivery
- 1x ERATAC Block Mount Ø34/BH33.5/30MOA,RAL8000, Nut in selected variant
Not included:
No scope, no Picatinny rail, no torque wrench, no spirit level, no ZFIX, and no additional accessories. Accessories for Universal or T7 interfaces should only be listed as included if they are explicitly part of the scope of delivery in the specific variant.
FAQ
Does this ERATAC mount fit every weapon?
No. It requires a suitable Picatinny or Weaver base and must mechanically match the system, ejection port, charging handle, eye relief, and objective lens diameter.
Which mounting height should I choose?
The mounting height must match the stock, optic, objective lens diameter, and shooting stance. Too low can cause contact with the barrel or rail, too high often worsens head position.
What does pre-cant mean in practice?
30 MOA theoretically creates an angular difference of approximately 87 cm at 100 m and is intended more for long-range setups than for short hunting weapons. Important: Pre-cant creates adjustment reserve, but does not replace correct zeroing or suitable ballistic data.
Do I have to re-zero after mounting?
Yes. After every mounting or change to the optic attachment, the point of impact must be checked and the weapon re-zeroed or confirmed.
When is this mount not suitable?
If the tube diameter, mounting height, pre-cant, or clamping system do not match your setup. A strong mount is only strong if the variant is correctly selected.
Conclusion: ERATAC Block Mount Ø34/BH33.5/30MOA,RAL8000, Nut is a technically sound solution for users who consciously choose mounting height, tube diameter, pre-cant, and clamping. It is worthwhile when point of impact and system logic are more important than the lowest price. It is not suitable if the variant only approximately fits.
