Durable stock, good fit/function, great price. 2 issues-- Foremost, due to the placement of the locking pin, with a modern 6-position buffer tube, the stock does not lock in the fully collapsed position. It will lock only when the stock is drawn back about a half inch from the castle nut. If you do collapse the stock fully against the castle nut, it doesn't lock, so the locking lever is loose and rattles freely without tension. Secondly, for retro cloning purposes, it's undesirable that this stock has a large "MADE IN USA" stamp on one side. It's excellent that this is a US made part, but I would prefer that the mark be a little less conspicuous. From a practical perspective, these are great for the money, however.