RIFLE: AMERICAN TACTICAL - ATI MODEL MIL-SPORT AR - RIFLE, SERIAL NUMBER MSA141784, BLACK (MATTE), YES - INCLUDES PROTECTIVE CASE, 18, 5.56 NATO, SEMI - AUTOMATIC Notes: The ANERICAN TACTICAL model Milsport is a 18 inch rifle chambered in .300 blackout. Comes with one 30 round magazine and sig romeo5 green dot. (These photos are the best statement of condition. please review them carefully before purchasing.)