ERATAC Spacer, BH – Build Height Spacers for ERATAC Universal Interfaces
Small spacers only solve a problem if they fit the system geometry.
ERATAC Spacer, BH are ERATAC spacers. They are used to specifically increase the build height of a compatible ERATAC attachment.
Spacers change the height and leverage of accessories. Too many intermediate layers can impair operation and stability. Variants: Height: 10.0 mm, 5.0 mm.
Important note for classification:
Spacers change the height and leverage of accessories. Too many intermediate layers can impair operation and stability.
Before buying, check: mounting series, diameter, build height, screw length, accessory position, and whether the solution is technically cleaner than a suitable main mount.
What makes this product technically special:
✔ Fitting part: serves to adapt within a compatible ERATAC system.
✔ Defined height/diameter: prevents improvisation with shims or wrong rings.
✔ System logic: makes sense if existing mount and optics/accessories are fundamentally compatible.
✔ Mounting control: Screw length, contact surface and even clamping must be checked.
✔ Variants: Height: 10.0 mm, 5.0 mm – determines whether T3/T4/T5 or 5/10 mm truly fit.
Why this product?
Reducer rings and spacers are not products you buy to sugarcoat an ill-fitting setup. They make sense when the basic geometry is correct and only the diameter or height needs to be specifically adjusted.
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Clean adaptation: no tinkering with third-party parts or intermediate material.
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Utilize existing mount: useful if the mount is high-quality and fundamentally suitable.
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Defined change of height/diameter: more reproducible than improvised solutions.
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Avoid wrong purchase: correct variant prevents incorrect clamping or wrong axis height.
Instructor's tip: Do not improvise with shims
If a riflescope slips in the mount or accessories are not seated properly, improvising with tape, foil or unsuitable shims is not a clean solution.
First check whether you have the right mount at all. Reducer rings and spacers only make sense if they are intended as system parts.
Our assessment
ERATAC Spacer, BH are useful if you need a defined adjustment within a compatible ERATAC system. They are less useful if you should actually buy a different mount height, a different ring diameter, or a different main system.
Useful for:
- Existing ERATAC mounts with suitable series
- Conversion of optics or accessories within a system
- Workbench and assembly control
- Users who want defined measurements instead of improvisation
Less useful for:
- Wrong mount series
- Unclear screw length or too small contact surface
- Setups where a different mount would be the better solution
- Users who do not carefully check clamping
Direct classification:
✔ ERATAC Spacer, BH: useful as a defined system part.
✔ New suitable mount: better if basic height or ring diameter was completely wrong.
The part is worthwhile if it makes a small defined adjustment – not if it is supposed to save a wrong mount.
Application scenarios
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Workbench: cleanly adapt optics/accessories to existing ERATAC components.
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Range: after conversion, check point of impact and firm seating.
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Hunting: only use if the setup remains flat, stable and handy.
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Long Range: recheck axis height and reticle position after change.
Practical tip: Always recheck after adjustment
Every change to ring diameter or accessory height changes the setup. After mounting, do not just check visually, but check for firm seating, freedom of movement and point of impact.
With reducer rings, pay special attention to even clamping. The main tube must not be subjected to point loads.
Features & Construction
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Function: to specifically increase the build height of a compatible ERATAC attachment.
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Type: Spacer – adaptation part, not main system.
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Variants: Height: 10.0 mm, 5.0 mm.
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Practical limit: no solution for wrong build height or incompatible mount.
Technical data
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Brand: ERATAC / Recknagel.
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Product type: Spacer.
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Variants: Height: 10.0 mm, 5.0 mm.
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Height: 10.0 mm, 5.0 mm – determines the suitable version, not just the optics.
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Manufacturer/article numbers: 10.0 mm: T0990-0010; 5.0 mm: T0990-0005.
Scope of delivery
- 1x ERATAC Spacer, BH in selected variant or 1 pair for reducer rings, if listed in the variant
Not included:
No optics, no main mount, no tools and no additional screws beyond the scope of delivery for the variant.
FAQ
Does this part fit every ERATAC mount?
No. The series and variant must match. Especially T3, T4/T5 and T7 must not be confused.
Is a spacer better than a higher mount?
Only if a small, defined height adjustment is needed. For fundamentally incorrect height, a suitable mount is cleaner.
Are reducer rings a makeshift solution?
They are only clean if they are intended for the mount and clamp evenly. Improvised reductions are not a good solution.
Do I have to re-zero after conversion?
Yes. Every change to optics, ring, mount or accessory height should be checked with a control shot.
When is the product not useful?
If you want to use it to save a wrong basic mount or if the interface is not clearly compatible.
Conclusion: ERATAC Spacer, BH are useful as defined ERATAC system parts. They are not intended to cover up wrong mounting decisions.
