The Warne Maxima Horizontal PA Rimfire Scope Ring is a quick detach ring created to fit both the 3/8th inch and 11 mm dovetails found on many common rimfire rifles. This ring features a unique 70/30 horizontal split design constructed of a steel rimfire with a medium ring height and a matte black finishFeatures:Designed to fit the 3/8 and 11 mm dovetail;Medium ring height;Fits 20-42 mm objective size;70/30 horizontal split;Steel construction