Here is the lower rail. It can be replaced without splitting the cases. See the bolt head to the right of the screwdriver tip.
Here is the upper rail. It is secured in the left case.
'Gonna get me a six pack...push people off the highway!'
"they live off the carrion of our mutual distrust and bribe us with symbols that equate hatred with manhood."
"I mean at the end of the day, I was addicted to Starting Fluid for Christ's sake!"
"Yeah, that guy sure is terrible at touching moms"