RIFLE: ABC RIFLE COMPANY MODEL ABC-15 RIFLE, SERIAL NUMBER 77-15341, BLUE / CCH, CASE NOT INCLUDED, SEMI - AUTOMATIC, 5.56 NATO, 16" Notes: ABC Rifle Company ABC-15 5.56 NATO Semi-Automatic Rifle The ABC Rifle Company ABC-15 is a 5.56 NATO semi-automatic rifle featuring a blue / CCH finish and a 16-inch barrel. This example is offered without a case. Specifications: Manufacturer: ABC Rifle Company Model: ABC-15 Rifle Serial Number: 77-15341 Action: Semi-Automatic Caliber: 5.56 NATO Finish: Blue / CCH Barrel Length: 16" Case: Not Included