Upgrade your 10/22A(R) receiver with our threaded pins Includes 82 degree countersink-for slight alteration of the receiver Eliminates excessive factory tolerance of pin to receiver fit. Stabilizes trigger guard to greatly enhance bedding stability. After this innovative KIDD product is installed the problem of tipping your barreled action to the side and the receiver pins fall out then the trigger falls on the floor --will be solved! Requires countersinking of receiver pin holes. Package Includes: 82 degree countersink two threaded receiver pins 4 screws short arm hex wrench Mfg: Kidd Innovative Design