PRECISION MATCHED RINGS34 MMRing Height1.26 inchesMachined with certified USA 7075 T6 billet aluminum and held to an extremely tight tolerance of .0005 inches using a precision Computer Numeric Controlled (CNC) mill. These Vortex rings are then serialized, vibratory tumbled, bead blasted and finished with a Type III hard coat anodize.Rugged, lightweight, anti-snag designRobust, Grade 8 fasteners100% made in USA guaranteed for lifeIncluded in the Box2 Precision Matched RingsTorx wrenchCenter Scope Height1.26 inches (32.0 mm)Weight (per ring)70 grams (2.5 oz)Mount CompatibilityPicatinny