Teslong 3-Mirror Set for Rifle Borescopes

This set is a one-size too that allows you to see the lands and grooves of a rifle with a caliber size of 0.22. They also help keep the borescope centered inside the barrel and thus maintain a more consistent focus when the borescope probe is being rotated.

NOTE: These mirrors are NOT compatible with the NTG200H Focus and Fold borescope.

DEPTH OF FILED OF THE BORESCOPE WITH THE SIDE-VIEW MIRROR SET

• Depth of Field of borescope's mirror with lock ring placed: 0 in to 0.28 in (0 mm to 7.112 mm)
• Depth of Field of borescope's mirror without lock ring placed: 0 in to 0.39 in (0 mm to  9.906 mm)