Size-Specific Product Specifications
Please note that while we strive for precision, there may be slight variations in the outer diameter, height/depth, and weight due to manufacturing tolerances. These variations are normal and are within industry-standard ranges:
- Inner/Outer Diameter Tolerance: Due to the nature of 3D printing, we maintain a tolerance of ±0.2mm. This accounts for slight variances in the printing process and material cooling.
- Height/Depth Tolerance: ±0.2mm to ±0.5mm. This range accounts for the layer resolution of the printer and minor variances that can occur due to factors such as material shrinkage, printer calibration, and environmental conditions during printing.
- Weight Tolerance: ±3% to ±5%. This range considers the potential variances in material density, the exact amount of material used (which can vary slightly due to printer calibration), and minor inconsistencies in the printing process.
These tolerances are indicative of our commitment to quality while acknowledging the practicalities of mass production. Rest assured, these minor variances will not affect the functionality and fit of the caps on your scope.
How to choose the correct size?
- Measure the Scope's Widest Part: Use a caliper for precision or a ruler as an alternative. Focus on measuring the widest part of the scope.
- Match Your Measurement to Our Cap Sizes: Our caps range from 38mm to 63mm in 0.25mm increments. If your measurement is close to .25, .50, .75, or .00, we recommend rounding up to the next .25 increment to avoid a tight fit.
- Consult Us for Perfect Sizing: If you're uncertain or your measurement is borderline, don't hesitate to contact us for assistance. We're here to help you select the best fit for your scope.
Need a Custom Fit?
If you find yourself unsure about the size, or if your scope requires an exact custom fit, please do not hesitate to contact us. We offer custom-built dimensions to meet your specific needs, ensuring that you get a Scope Cap that fits your scope perfectly.
Outer Diameters by Inner Size
- Inner Diameter: 38mm, Outer Diameter: 43.067mm
- Inner Diameter: 39mm, Outer Diameter: 44.201mm
- Inner Diameter: 40mm, Outer Diameter: 45.334mm
- Inner Diameter: 41mm, Outer Diameter: 46.467mm
- Inner Diameter: 42mm, Outer Diameter: 47.600mm
- Inner Diameter: 43mm, Outer Diameter: 48.734mm
- Inner Diameter: 44mm, Outer Diameter: 49.867mm
- Inner Diameter: 45mm, Outer Diameter: 51.000mm
- Inner Diameter: 46mm, Outer Diameter: 52.134mm
- Inner Diameter: 47mm, Outer Diameter: 53.267mm
- Inner Diameter: 48mm, Outer Diameter: 54.400mm
- Inner Diameter: 49mm, Outer Diameter: 55.534mm
- Inner Diameter: 50mm, Outer Diameter: 56.667mm
- Inner Diameter: 51mm, Outer Diameter: 57.800mm
- Inner Diameter: 52mm, Outer Diameter: 58.934mm
- Inner Diameter: 53mm, Outer Diameter: 60.067mm
- Inner Diameter: 54mm, Outer Diameter: 61.200mm
- Inner Diameter: 55mm, Outer Diameter: 62.334mm
- Inner Diameter: 56mm, Outer Diameter: 63.467mm
- Inner Diameter: 57mm, Outer Diameter: 64.600mm
- Inner Diameter: 58mm, Outer Diameter: 65.734mm
- Inner Diameter: 59mm, Outer Diameter: 66.867mm
- Inner Diameter: 60mm, Outer Diameter: 68.000mm
- Inner Diameter: 61mm, Outer Diameter: 69.134mm
- Inner Diameter: 62mm, Outer Diameter: 70.267mm
- Inner Diameter: 63mm, Outer Diameter: 71.400mm
- Inner Diameter: 64mm, Outer Diameter: 72.534mm
- Inner Diameter: 65mm, Outer Diameter: 73.667mm

Height/Depth by Inner Size
- Inner Diameter: 38mm, Height: 15.957mm
- Inner Diameter: 39mm, Height: 16.370mm
- Inner Diameter: 40mm, Height: 16.784mm
- Inner Diameter: 41mm, Height: 17.197mm
- Inner Diameter: 42mm, Height: 17.610mm
- Inner Diameter: 43mm, Height: 18.024mm
- Inner Diameter: 44mm, Height: 18.437mm
- Inner Diameter: 45mm, Height: 18.850mm
- Inner Diameter: 46mm, Height: 19.264mm
- Inner Diameter: 47mm, Height: 19.677mm
- Inner Diameter: 48mm, Height: 20.090mm
- Inner Diameter: 49mm, Height: 20.504mm
- Inner Diameter: 50mm, Height: 20.917mm
- Inner Diameter: 51mm, Height: 21.330mm
- Inner Diameter: 52mm, Height: 21.744mm
- Inner Diameter: 53mm, Height: 22.157mm
- Inner Diameter: 54mm, Height: 22.571mm
- Inner Diameter: 55mm, Height: 22.984mm
- Inner Diameter: 56mm, Height: 23.397mm
- Inner Diameter: 57mm, Height: 23.811mm
- Inner Diameter: 58mm, Height: 24.224mm
- Inner Diameter: 59mm, Height: 24.637mm
- Inner Diameter: 60mm, Height: 25.050mm
- Inner Diameter: 61mm, Height: 25.464mm
- Inner Diameter: 62mm, Height: 25.877mm
- Inner Diameter: 63mm, Height: 26.290mm

Weight (grams) by Inner Size
- Inner Diameter: 38mm, Weight: 12.524 grams
- Inner Diameter: 39mm, Weight: 12.642 grams
- Inner Diameter: 40mm, Weight: 12.76 grams
- Inner Diameter: 41mm, Weight: 13.561 grams
- Inner Diameter: 42mm, Weight: 14.363 grams
- Inner Diameter: 43mm, Weight: 15.164 grams
- Inner Diameter: 44mm, Weight: 15.966 grams
- Inner Diameter: 45mm, Weight: 16.767 grams
- Inner Diameter: 46mm, Weight: 17.569 grams
- Inner Diameter: 47mm, Weight: 18.37 grams
- Inner Diameter: 48mm, Weight: 19.309 grams
- Inner Diameter: 49mm, Weight: 20.248 grams
- Inner Diameter: 50mm, Weight: 21.187 grams
- Inner Diameter: 51mm, Weight: 22.126 grams
- Inner Diameter: 52mm, Weight: 23.064 grams
- Inner Diameter: 53mm, Weight: 24.003 grams
- Inner Diameter: 54mm, Weight: 24.942 grams
- Inner Diameter: 55mm, Weight: 25.881 grams
- Inner Diameter: 56mm, Weight: 26.82 grams
- Inner Diameter: 57mm, Weight: 27.759 grams
- Inner Diameter: 58mm, Weight: 28.698 grams
- Inner Diameter: 59mm, Weight: 29.637 grams
- Inner Diameter: 60mm, Weight: 30.576 grams
- Inner Diameter: 61mm, Weight: 31.514 grams
- Inner Diameter: 62mm, Weight: 32.453 grams
- Inner Diameter: 63mm, Weight: 33.392 grams
