I never found a stock for the STEN that I liked so I decided to make my own. I took an M31 'Suomi' parts kit and reworked the stock to fit the STEN. I then took the shrouded barrel and reworked that to fit as well. Now I have a much more comfortable stock with a longer LOP. The heavy barrel is nice as it gives you a more natural way to grip the front and it doesn't heat up nearly as fast but it is heavier so I don't always run that. What do you think?