If you want a pistol gripped M1 Carbine without the stock check gun broker for a reproduction m1 carbine pistol. Plainfield made one, they were bought out by Iver Johnson, and continued to make them for a long time. They can be found for reasonable prices. Also they have a shorter overal length becasue they were made a handguns.
No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.