PISTOL: RADICAL FIREARMS MODEL RF-15 PISTOL, SERIAL NUMBER 25-057665, SEMI - AUTOMATIC, 300 BLK, BLACK (MATTE), CASE NOT INCLUDED, 8 Notes: The Radical Firearms RF-15 is a semi-automatic AR-style pistol chambered in .300 AAC Blackout. This compact platform features forged aluminum upper and lower receivers, a short barrel, free-float handguard, M-LOK attachment points, and a direct-impingement operating system. The .300 Blackout chambering makes the RF-15 a versatile option for range use and those looking for a compact AR-platform firearm. This pistol is a solid choice for buyers looking for an affordable .300 BLK platform