Ask the Community

The ATI Omni lower receiver is polymer with a metal liner for strength, especially where the castle nut secures the buffer tube to the lower itself. These are excellent firearms at a very reasonable price and has had no issues whatsoever. Have a great day, David!

Hi David and welcome. The Lower is reinforced Polymer/Plastic and the Upper is Aluminum making this a Hybrid design that is both strong and lightweight. Cheers, stay safe and enjoy!