This is factory Howa chassis & buttstock assembly, complete. Basically a Luth AR MB-3 adjustable buttstock with an Accurate mag aluminum chassis with Ergo grip & open top forend. Will handle any barrel contour. Uses standard Howa mini magazines. Includes receiver attachment screws. Retail of these components is $700. This is as new. $350 shipped in lower 48. Listed on multiple sites, so will go by 1st I will take it timestamp.