16 4150 Mag Phos-coated barrel – 15 Slim M-LOK handguard – Gas system/specs may vary by caliber – M16 BCG – M4 Adjustable Stock – A2 Pistol Grip – A2 Birdcage flash hider – Optics SPECIFICATIONS: – Magnif ication lx – Objective Lens Diameter 30mm – FOV 60ft @ IOOyds w ith a 3.5 Eye Relief – Reticle MS (4MOA Dol 32MOA Circle) – (I MOA) Elevation & Windage Adjustments – 10 Brightness Levels – Parallax Free 8ft – Length 4.3 – Weight IOoz – Waterproof (IPXB) – Fog Proof Nitrogen Purged – Shock Proof (ASS SOCOM) – (Low) Picatinny Rail adaptor included – Battery type ( AAA ) – Lifetime Warranty