The Light barrel ( Black ) gun was ordered with the colapasable m4 stock and
the Heavy barrel ( Flat Dark Earth ) gun came with the standard folder and I hated
that stock so I ordered the m4 adapter from Ty at Robinson and bought a mil-spec tube and Magpul CTR.
I had to experiment a bit until I got the right snugness so it didn't wobble but it's all good at this point.
I like it.
