I wish I'd have bought this a year ago! Like many folks I let simple cheapness delay this purchase, never wanted shell out two hundred bucks + the cash for the adapter. But recently I sold a couple guns I don't use much and freed up some cash; flush with funds I decided to bite the bullet and purchase them. Man, what a difference! The original Bren 805 stock isn't terrible but the Magpul ACR stock is light years better! I might seriously be the best folding rifle stock available. I can think of few carbines, rifles or subguns that wouldn't be improved with this stock.
If you're on the fence stop putting it off and grab your credit card! These things are always in short supply and if you miss out on this batch who knows when the next will arrive. You won't regret it!