VZ2008s -- I'm uncertain of the teflon process (believe it's spray or electrostatic), but it appears they plug the barrel and then then apply relatively thickly to receiver, stock, etc... A fair bit of that teflon appears to migrate into the folding stock threads, disassembly pin channels, stock button, etc, and actually serves to provide friction/tightness until the parts are worked a bit to smooth things out.