WMD Guns Beast – Semi-automatic – AR – 300 Blackout – 16″ Barrel – Threaded 1/2X28 – Low Profile Gas Block – Tri Port Compensator – NiB-X Coating – Silver – 15″ Free Float M-LOK Handguard – Optics Ready – Magpul MOE Black Pistol Grip – Magpul Buttstock – 30 Rounds – 1 Magazine 1-556NIBX-300BO