I have a 9.5 FSP and it's absolutely worth it. If your going to pay to get it installed, use that money to buy an upper receiver vice block and an armorers wrench instead. Then you can do your own from now on. It is easy and more satisfying and you can change out your flash hiders/ brakes at will. You could use the gas block punch pin block but it's unusable while reinstalling the gas block with the 9.5. Just use a piece of wood. You can watch videos on YouTube, to get an idea. $220 is a jump on it deal. Best of luck.
Went ahead an ordered the AR Pro Aluminum upper and lower receiver vise block combo set.
The DD 9.5" FSP Lite Rail comes with the DD wrench. So I should be good to go.
And have the satisfaction of doing the work myself .