Decent for the price but definitely read the review - VISM Commercial Spec AR15 Buffer Tube

Good quality for the money overall. The only thing I can't figure out is exactly what size it is I measured it and it's not commercial and it's not mil spec it's somewhere in between both types of stocks will fit on it but it doesn't bottom out flat when collapsed all the way to the Locking nut. It lacks about a quarter of an inch from clicking in all the way tight up against the Locking nut. If that doesn't bother you this is the product for you. Price is Right quality is good it is a little strange that the end of it is not solid like most buffer tubes it appears to have a cap Captain to the end of it