Mounts by replacing the rear sight. No drilling or tapping required. For use on M1 .30 carbine caliber rifles. Installation Instructions : 1. Remove the rear sight. 2. Install adaptor plate in the dovetail. If plate is too tight to slide in rear sight notch in receiver, file the sides of the adaptor plate to obtain a snug fit in reciever . 3. Position scope mount on reciever and tighten mounting bolt with wrench provided . 4. Mount scope rings and scope according to manufacturers instructions . Anodized aluminum
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