Specifications:• 16” stainless steel, chambered for 5.56 NATO• Patented Omni Hybrid Upper and Lower Receivers• 13” Free Float Aluminum KeyMod Rail System• A2 Compensator• 6 Position Adjustable buttstock• Mil-Spec AR15 Lower Parts Kit• Black Nitride Finish AR15 Bolt Carrier Group• Ammend2 Magazine, 30 round capacity (.223/5.56)• Lower Receiver Endplate with Ambidextrous Sling Loop