PISTOL: RADICAL FIREARMS MODEL RF-15 PISTOL (FP8.5-300HBAR-7RPR), SERIAL NUMBER 25-016146, SEMI - AUTOMATIC, 223, BLACK (MATTE), CASE NOT INCLUDED, 8IN Notes: RADICAL FIREARMS RF-15 PISTOL, 30+1, 7.5" barrel, 5.56 The Radical Firearms RF-15 Pistol is a compact AR-platform firearm featuring a semi-automatic operating system and a detachable magazine. It incorporates the familiar controls and modular design associated with the AR-15 platform, with a configuration intended for use as a pistol rather than a traditional rifle.