Scope Mount Finder

35 mm scope tube

A 35 mm tube takes 35 mm rings and nothing else. Here is the diameter, the ring match rule and how ring height clears the objective bell.

Tube in ring, not to scale
Designation35 mm rings
Tube diameter
Main tube diameter
35.0 mm
Ring size needed
35 mm rings
Interchangeable
no, rings must match the tube exactly
Market
a less common large precision size
Fits these rails with matching rings

Ring diameter must match the tube. A 35 mm scope needs 35 mm rings. Even a small mismatch either stops the ring closing or lets the scope slip under recoil, so measure the main tube with calipers if the figure is not printed on the scope.

A 35 mm tube is used by a few precision scope lines. It is not interchangeable with 34 mm rings, so confirm the exact figure before buying.

Once the ring diameter matches the tube, ring height decides objective clearance: taller rings lift the scope so a larger objective bell clears the barrel and rail. Low rings suit small objectives, taller rings are needed as the objective grows.

Rings for a 35 mm tube
Fit this tube to a rail

Sources: 1in, 30mm, 34mm scope tubes and rings, Weaver Mounts · Scope tube sizes explained, Victoptics