RUGER CARBINES AUTO & SINGLE SHOT - GTSW313 - Packaged with both fore end adapter to fit 10/22 .44 mag and No. 3 carbines. 1/2 wood screw suitable for fore end stock mounting. Includes 3/4 rear wood screw swivel stud with spacers and two 1.25 Locking Swivels. - Perfect fit for Project Appleseed rifle marksmanship courses.