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Made exclusively in the UK by Sportsmatch. These double-screw mounts are available in medium and high hights for 1″ or 30 mm rifle scopes and do not include a recoil stop pin, excellent for PCP Air or 22 LR.
They have a measured variance of .001 (1 micron) while the screws are Teflon coated (NITROTECH) rather than blackened and are more corrosion resistant. Side screws are a tidy mushroom design with a thrust washer.