Elcan FDE 1-4 5.56 with upgraded ARMS levers, includes both the solid flip caps, as well as amber see through flip caps. also includes manual, but no box. threw out the ARD insert that attaches to the front cap, as it makes 1x unusable. lightly used, glass is 100%, as is the illumination Not looking for trades, but would be open to a Glock 19 COA, or Romeo 8T AMR set towards the purchase