PSA AK-104. Currently has a rearden suppressor mount on it but I can put the booster on if the buyer wants. Comes with a JL billet rail and a 1913 rail adapter on the back end for a brace. Does not come with the brace pictured. Can work out a triangle folding brace if the buyer wants. Contact for more information by email or four 0 six 3 two 0 0254