EBBQ Excalibur 355/380 Cheek Piece Matrix, Realtree Xtra Excalibur crossbow Crossbow scope Cheek piece 1976 matrix 355&380 crossbows Cheek piece will attach to any Excalibur thumbhole stocks and the traditional stock to maximize comfort and control on your crossbow Traditional stocks are identified by 5 diagonal slash marks on the forfend on either side of the trigger Cheek piece seamlessly snaps in place for either right or left hand shooters and attached with a single machine screw Comes in Real tree Xtra camo for Excalibur models, Matrix 355 and 380