RIFLE: ET ARMS INC MODEL A-1 RIFLE, SERIAL NUMBER EA00834, BLACK (MATTE), CASE NOT INCLUDED, 16IN, 300BLK, SEMI - AUTOMATIC Notes: The ET Arms A-15 is a modern semi-automatic rifle chambered in .300 acc blk. It features the familiar AR-style platform, offering a practical and versatile design suitable for a variety of shooting applications. This rifle is a solid option for those looking for a dependable, customizable platform with broad accessory compatibility.