S&WM&P40
New member
I was told in order to install a after market forend on the 88 you need to install a slide tube. I know it needs to be also be a two rail slide tube. Other then that I'm lost. I have found slid tubes from 7 5/8,7 3/4 and 6 3/4? Do they all fit? Does it depend on the forend I want to install?
