Selling my rdb chambered in 5.56. Takes standard ar mags. Great gun. Just funding a new project. Solves with a holosun HS403R which I believe is a 2 MOA sight. I’m lowing the price as I’d like to price it to move so I can fund another project. Cost approximately $1150 to get this. I won’t go lower than list price. I live in katy and work near 290 and hollister and will meet near one of those. 832-6four6-8011