Lead & Steel Llc L & S LS9MM16-36 AR9 9mm 16" Straight Profile
https://www.tandktactical.com/shop/7427053012508-lead-steel-llc-l-s-ls9mm16-36-ar9-9mm-16-straight-profile-57830
https://www.tandktactical.com/web/image/product.template/57830/image_1920?unique=44c2dc0
The Lead & Steel AR-9 barrels are turned from 4150 Chrome Moly Vanadium Steel and coated in a QPQ Black Nitride finish.
