Barska 30mm Extra-High Weaver Peep Sight Rings. These extra-high Barska rifle scope rings are built for scopes with wide objective lenses high magnification rates and extended lengths since the extra-high mounting profile can accommodate the broad lenses that characterize high-brightness high-powered scopes. Barska has built the rings to mount to any Weaver-style rail with one sturdy set screw and its 30mm diameter will accommodate most modern Rifle Scopes. The Barska 30mm Extra High Weaver Iron Sight Rifle Scope Rings feature a hollow peep sight base to give you access to your iron sights even when you have the rings and a scope mounted allowing you to quickly swap between close-range targets with the iron sights and long-range targets with your scope. With a durable aluminum construction attractive black matte finish and reliably secure mounting power the Barska 30mm Weaver Extra High Rings 2-Pack is a great way to accurately mount your scope. Specifications for Barska Pair of Weaver Extra-High Peep Sight Scope Rings: Height: 1.54" Diameter: 30mm Overall: 2.36" Material: Aluminum Finish: Black Matte Rings Per Pack: 2 Set Screws: 1 Lock Nuts: 2 Features of Barska 30mm Extra-High Weaver Scope Rings AI11766: Reliable scope mounting rings by Barska Extra-high mounting profile is ideal for high-powered rifle scopes with large objective lenses Peep sight design allows use of iron sights with rings mounted Weaver-style mounting base Sturdy aluminum construction Black Matte finish Two (2) rings per package Backed by the Barska 1-year limited warranty Package Contents: Barska 30mm Extra-High Weaver Rings #Rings / Pkg 2 #Set Screws 1 #Lock Nuts 2 Barska AI11766: 30mm Extra-High Weaver Peep Sight Rings