The rail utilizes a standard 3/8 dovetail ring mounting system. When your young marksman is ready to upgrade, pair it up with the Crickett Scope Mount and open a whole new experience of shooting fun. The 80044-LH and KSA054 is compatible with the Crickett Alloy 6061 and Chipmunk left hand rifles. USE THIS SCOPE MOUNT ONLY FOR THE LEFT HANDED MODEL CRICKETT ALLOY 6061 OR CHIPMUNK 00001LH.