ICS CXP-ARK FEATURES ● Integrated MOSFET● Tactical Fire Selector Lever● Rear-lockable Bolt Plate● Lightweight M-Lok handguard● Windowed T-Mag ● Steel Flash Hider● QD Spring Guide Design● One-piece Metal H-UP● Release Spring Function● 8MM Gearbox Bushing● SF1 Quick Response Foldable Stock