The AR-15 Kit provides a dedicated storage solution specifically tailored to the ever-growing MSR market. Use a 4"" Standard Panel to store any firearm that uses AR-15 magazine vertically or horizontally, along with 3 magazines. Kit Includes: SecureWall Standard 4"X24" Panel SecureWall AR-15 Hanger Securewall AR-15 Mag Rack Mfg: Lockdown Safe & Security Acc.