Anderson Mfg lower. Dirty Bird upper 16″ Black Nitride Mid-Length barrel chambered in 5.56 NATO (can shoot both 5.56 and .223) with 1:7 twist. Magpul grip and collapsible stock. Magpul MBUS Pro iron sights. Ambidextrous safety and charging handle. El Cheapo brand barrel mounted laser. I built this for my father-in-law but he passed away last year. This rifle has only had 10 rounds put through it.