Fit a 30 mm scope in 34 mm rings with reducer inserts
How reducer inserts let a 34 mm ring hold a 30 mm scope, and the direction that does not work.
Needs adapterA 30 mm scope fits 34 mm rings only with 34 mm to 30 mm reducer inserts. Bare 34 mm rings are too large to clamp a 30 mm tube.
Optic30 mm scope30 mm tube
interface
Mount34 mm to 30 mm reducer inserts
seats on
Rail34 mm ringsoversized for a 30 mm tube without inserts
Fit readoutBench figures
FitmentInsert
34 mm to 30 mm reducer inserts
Direction
inserts step a ring down only, never up
What to fit it with
Search Amazon for 34mm to 30mm ring reducer insertsaffiliate searchFind 34mm to 30mm ring reducer inserts on eBayaffiliateSearch Amazon for Picatinny scope rings 30mmaffiliate searchFind Picatinny scope rings 30mm on eBayaffiliate
Reducer inserts drop a smaller tube into a larger ring. A 34 mm ring with 34 mm to 30 mm inserts holds a 30 mm scope, which is useful if you already own the larger rings or a matched mount.
It only works downward. You cannot make a 30 mm ring hold a 34 mm tube. If your scope is 30 mm and you have no inserts, buy 30 mm rings.
Related fitments
- ›30 mm scope tubethe tube to hold
- ›34 mm scope tubethe ring size
- ›34 mm scope in 30 mm ringsthe direction that fails
Sources: 1in, 30mm, 34mm scope tubes and rings, Weaver Mounts · Scope tube sizes explained, Victoptics · How to select rifle scope rings, Outdoorsmans