ERATAC Block Mount Steyr AUG-Z Ø34/BH20/10MOA, Lever – One-piece Block Mount with Quick Release Lever and 10 MOA Forward Cant
If the mount is not right, even a good scope becomes a source of uncertainty.
ERATAC Blockm. Steyr AUG-Z Ø34/BH20/10MOA, Lever is an ERATAC mount with an adjustable quick release lever for Picatinny/Weaver systems. It connects the scope and weapon as a defined interface – with a focus on height, tube diameter, clamping, and point of impact.
With ERATAC, the variant matters more than the name: tube diameter, height, forward cant, and clamping system must match the weapon, optics, eye relief, and application. 10 MOA theoretically creates approximately 29 cm of angular difference at 100 m and provides slightly more elevation reserve than a neutral mount.
Important note for classification:
Before purchasing, tube diameter, height, rail standard, forward cant, eye relief, and clamping system must match.
Before purchasing, check: Picatinny/Weaver rail, scope tube diameter, objective diameter, bolt/charging handle clearance, desired mounting height, 10 MOA forward cant, and whether a quick release lever makes sense for your setup.
What makes this product technically special:
✔ One-piece block mount: maximizes rigidity through a continuous base and reduces mounting errors.
✔ Quick release lever: useful for changing optics or transport when repeatable removal is important.
✔ High-strength aluminum / Mil-Spec Type III: constructively 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, offset mounts, or adapters can be mounted close to the optic.
✔ 10 MOA forward cant: 10 MOA theoretically creates approximately 29 cm of angular difference at 100 m and provides slightly more elevation reserve than a neutral mount.
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 during recoil, and must be mounted so that eye relief, stock weld, and weapon operation function correctly. T4 GEN-2 describes not just a model series, but a different operating logic: quick change, bolted permanent solution, ultralight, or T7 with ERA-Grip.
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Clean optic position: height and tube diameter are selected via the variant; this prevents unnecessarily high or too low setups.
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Defined clamping: quick release lever reduces improvisation on a safety and precision-relevant component.
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Planned forward cant use: 10 MOA must match the distance and adjustment range of the scope.
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System accessories possible: depending on the series, spirit levels, offset mounts, or adapters can be integrated directly into the ERATAC interface logic.
Instructor Tip: Mounting errors begin before the first shot
Never mount a scope by eye alone. First, adjust stock weld and eye relief, then determine height and position, then align the reticle and tighten screws with the appropriate torque.
For canted mounts, first check whether your scope still has enough downward adjustment travel at your planned zeroing distance. 20 MOA makes sense for many long-range setups, but can be unnecessary at short distances with some scopes.
After every mounting: don't just tighten, but zero and document the point of impact. Repeatability is not a theory – it only shows itself after removal, re-mounting, and a control shot.
Our assessment
This one-piece block mount is useful 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 scopes, and hunting weapons with higher optic weight. It is less useful if the variant does not exactly match the optic or if you are actually just looking for a simple, inexpensive standard mount for occasional use.
Suitable for:
- Precision and long-range setups with carefully chosen forward cant
- AR and bolt-action platforms with Picatinny/Weaver rail
- Hunting weapons with high-quality scopes and a clear mounting height
- Users who consciously choose ring diameter, height, and clamping
Less suitable for:
- Optics with a different tube diameter than the chosen variant
- Weapons without a suitable Picatinny/Weaver base
- Users who do not want to check height and eye relief
- Setups where a cheaper, simple mount is perfectly sufficient
Direct classification:
✔ ERATAC Blockm. Steyr AUG-Z Ø34/BH20/10MOA, Lever: strong when quick removal, transport, or optic changes are relevant.
✔ Screw clamping: often more logical if the scope remains permanently on a weapon and tools are not an issue.
The right choice depends not on the brand name, but on tube diameter, height, forward cant, and clamping system.
Application scenarios
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Long Range / Precision: Forward cant and a rigid mount help to effectively use the optic's adjustment range.
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Range and Training: repeatable mounting saves troubleshooting point of impact deviations.
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Hunting Bolt-Actions: clean height and eye relief are crucial for quick aiming.
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AR Platforms: mounting height, charging handle clearance, and eye relief must work together.
Practical Tip: Check objective clearance and head position in real life
Don't just check objective clearance in dry runs. Dust caps, attachments, neoprene covers, or a heavier barrel can suddenly make the seemingly sufficient distance 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: T4 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: quick release lever – must match change frequency, platform, and operating method.
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Forward cant: 10 MOA – more forward cant provides more elevation reserve, but does not replace a clean 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: quick release lever – determines whether change speed or permanent bolting is paramount.
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Forward cant: 10 MOA – 10 MOA theoretically creates approximately 29 cm of angular difference at 100 m and provides slightly more elevation reserve than a neutral mount.
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Manufacturer/Article Numbers: Standard: T4064-1020.
Scope of delivery
- 1x ERATAC Blockm. Steyr AUG-Z Ø34/BH20/10MOA, Lever in chosen 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 diameter.
Which mounting height should I choose?
The mounting height must match the stock, optic, objective diameter, and shooting position. Too low can cause contact with the barrel or rail, too high often worsens head position.
What does the forward cant mean in practice?
10 MOA theoretically creates approximately 29 cm of angular difference at 100 m and provides slightly more elevation reserve than a neutral mount. Important: forward cant creates adjustment reserve, but does not replace correct zeroing and 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 useful?
If the tube diameter, height, forward cant, or clamping system do not match your setup. A strong mount is only strong if the variant is chosen correctly.
Conclusion: ERATAC Blockm. Steyr AUG-Z Ø34/BH20/10MOA, Lever is a technically sound solution for users who consciously choose mounting height, tube diameter, forward cant, and clamping. It is worthwhile when point of impact and system logic are more important than the lowest price. It is not useful if the variant only roughly fits.
