The Windham Weaponry complaint AR has one hole on the bottom of the buffer tube that the stock screws into. Does the stock still need to be pinned even though there is no way to collapse it?

if it doesnt move then no .just be sure of it

Iam pretty sure that the screw goes through the stock and the buffer tube is threaded to accept the bolt. There are no other holes drilled in the buffer tube for adjustability....