Just measured 2 of them and they are about 7.5" total. The ones I still have are from Model 1 so you might want to check with them for more info. The buffer and spring I'm running in them are standard carbine ones.
When walking down the street have a loud conversation with your self ,appear like a crazy person , robbers avoid crazy people
There use to be a list of all my firearms here but the list is too long to fit now.... errr... I lost them in the lake.