The carbine spring and buffer came in today. Just takes a minute to install. Easy. But watch for the buffer retaining pin & spring. Also one other spring. Watch a you tube video before you attempt to do this yourself, or you could loose springs.
Before and after pic below. Not a great deal over a hundred bucks in the update. The thing I like best is this stock is about two inches longer than the stock stock in the fully extended position. Six positions to choose from. (never said stock stock before) lol
In the collapsed position, it is a great deal shorter, fits in my case better.
Stock: CAA brand model CBST
Buffer & Spring R&R arms