RIFLE: RADICAL FIREARMS MODEL RF-15 - RIFLE, SERIAL NUMBER 2-031285, BLACK (MATTE), YES - INCLUDES ORIGINAL BOX, 15, 5.56 NATO, SEMI - AUTOMATIC Notes: The Radical Firearms RF-15 is a semi-automatic AR-style rifle chambered in 5.56 NATO. This model features a 16-inch barrel, forged aluminum upper and lower receivers, direct-impingement gas system, and a free-float M-LOK handguard. The rifle has a flat-top upper receiver with Picatinny rail space, adjustable stock, and A2-style flash hider. The RF-15 offers a familiar AR-15 platform suitable for range use and recreational shooting.