This AR15 has an Adams Arms complete Upper Receiver, with a Samson Evo 9" handguard. Has an Adams Arms adjustable gas block and a 16" barrel. The lower is a New Frontier receiver, with a standard Carbine buffer tube, stock, and spring. Brand new PSA hand grip was just installed. Also includes a Thermold 30 round mag. The receiver buffer tube end plate had sling mounts on it, but were cut down due to the grip that I had it on before. Doesn't look the greatest but easy/cheap enough($4) to swap out.