Bull Proof Optics

STED X SERIES

Performance You’d Expect to Pay More For.
Engineered with premium features, tested for real-world reliability, and priced to put true quality within reach of every shooter.

Value for money

Luxury feel without the luxury price.

Lifetime warranty

Any Problem, Always Covered.

satisfied, or refunded

FREE 30 Day Returns and refunds.
STED X LENS

Precision Multi-Layer Lens Coatings

Our STED X green coated lenses use a precision nine-layer optical coating system, applied through advanced physical and chemical deposition. A deliberately engineered film system where each ultra-thin layer serves a specific function.

The coatings work together to maximise light transmission, suppress glare, harden the lens surface, reduce static, and repel water and oils. The result is higher contrast, true colour, improved low-light clarity, and long-term durability in demanding environments.

This is why our scopes can be trusted to deliver consistent, repeatable performance.

Engineered. Tested. Proven.

🔍 Surface & Component Inspection

Every riflescope undergoes detailed visual inspection of:


  • Surface colour consistency

  • Scratches and finish quality

  • Engraving clarity and precision

  • Reticle plate glass

  • Zoom condenser lens

  • Rear lens chamber glass

  • Dust and contamination

All inspections are conducted under controlled lighting and fixed distance conditions to ensure consistency across every batch.

⚙️ Mechanical & Control Testing

We thoroughly test all moving and adjustable components including:


  • Adjustment turrets

  • Windage & elevation rotation

  • Eyepiece frame

  • Illumination control

  • Bonded components

We check for:


  • Smooth, consistent rotation

  • No excessive tightness or looseness

  • Positive, uniform click feel

  • No jamming, hesitation or dead travel

  • Accurate and consistent positioning

  • Clearly defined illumination brightness levels

  • Secure bonding with no tilt or movement

🎯 Optical & Precision Performance Testing

Each riflescope is tested against strict internal standards for:


  • Reticle alignment (no tilt)

  • Tracking accuracy

  • Click value precision

  • Total adjustment range

  • Field of view & field curvature

  • Magnification accuracy

  • Centre shift

  • Parallax accuracy

  • Runout

  • Diopter function

  • Resolution clarity

  • Reticle dust & internal defects

Every component must meet our defined performance tolerances.

💥 Durability & Environmental Testing

To ensure reliability in real-world conditions, scopes are tested for:

Impact Resistance

Free-fall drop testing on a dedicated impact machine.

Waterproofing

Submerged at 52°C water temperature, 250mm depth for 3 minutes.

Fogproof Performance

Stored at –18°C for 30 minutes.

After testing, we confirm:


  • No parallax drift

  • No loosening of components

  • No air bubbles or leaks

  • No internal fogging

✅ Final Quality Control & Packaging

Every scope receives a final visual inspection to confirm:


  • Exterior finish matches specification

  • Reticle design matches approved standards

  • No stains, glue marks or oil residue

Packaging is checked to ensure it is clean, secure and presentation-ready.

The heart of what we do

WE PROVIDE, SO YOU CAN HAVE MORE OF THIS.

Warranty & Returns :

Satisfied or Refunded. We stand by the quality of our products - that's why we offer a 30 DAY RISK FREE trial. Simply, if you are not satisfied with your Bull Proof Riflescope or Red Dot, we will offer a full refund of your order, and cover postage within a 30 day period after your purchase.

Furthermore, our STED X Series is covered by a full lifetime warranty, ensuring that no matter the problem, you are always covered. Press the link below to find out more :