Lead & Steel Llc LS556PEN-CAR-16 5.56mm 16" Pencil Profile Features M4 Feed Ramps Carbine-Length
https://www.tandktactical.com/shop/7427053012348-lead-steel-llc-ls556pen-car-16-5-56mm-16-pencil-profile-features-m4-feed-ramps-carbine-length-57819
https://www.tandktactical.com/web/image/product.template/57819/image_1920?unique=4b7a5e3
The Lead & Steel AR-15 barrels are turned from 4150 Chrome Moly Vanadium Steel and coated in a QPQ Black Nitride finish.
