A customer requested a tapered nut to duplicate the appearance of the nut used on the MP 40.
This nut retains the barrel just as a shroud does but mimics the tapered cone nut of the MP 40.
They work well (and in our humble opinion, look best) when used with a shorter 5" barrel.
Proper installation of the barrel nut calls for depressing the latch then tightening the barrel nut
the last turn or so. Merely screwing the nut into place will lead to wear on the serrations on the
rear face of the nut (and the latch) and the nut will vibrate loose during firing.
BE ADVISED that without the ventillated shroud over the barrel, burns are a distinct possibility.