SI STYLE DUAL FOLDING STOCK w/CHEEK RISERFeatures: Skeletonized folding stock for rail mounting Mounts directly to a 1913 Picatinny rail with 2 Torx screws Pre assembled as stabilizer and includes a separate SBR buttstock Rear ends mounted with a single Torx screw Patented, first Picatinny adapter on the market with double sided folding capability and intuitive operation Folds left or right at any time without rotating the hinge Locks into the folded position Comes with rubber pads of