I have two M1 Carbines. I installed a M1A1 stock on one of them. They were the last CMP batch. Got a Saginaw Gear and an Underwood. They are fun shooters and loved by the whole family.
Love every weapon in your service history. My service was later so your cursed M16 was my intro followed by the Government 1911, M9 Beretta, and an M4 Carbine in Afghanistan. When I came home from Iraq I started collecting US battle rifles. I started with a Krag and have all of them now. I love the Garands more than any of the rest.They were issue arms for outboard security watches aboard ship. The missile house, ASROC and Missile house watch carried 45's. Our ships 45's were adequate at 50 yards but not beyond that, the Carbines easily hit a helmet target at 100 yards on the first shot by most of our shooters. I went through the transition period of carrying 03's in boot camp, training with M1's and BAR's, watched the M14's come and go only to be replaced by the unmentionable and forever cursed M16. If I had my druthers I'd want my M1 in my hands but I would not feel unarmed with the 30 cal carbine no matter which version.
There are only a few guns that I don't have in my collection that I wish I did have and the 30 cal carbine is one of the top 3. Right now my shotgun is my house gun but if I know I'm going outside I switch to my Win 94 in 32 Win spcl. If I had a carbine it would replace the 32 spcl.
But the MP40 was German....Got it.............The carbine was fine for the purposes for which it was intended. It was never intended to be a main battle rifle, although it was frequently used as such in the Pacific and China-Burma-india theater. The British SAS thought highly of the carbine and used it often. The Brits also employed it extensively in the campaign against the Malayan insurgents post WWII. I have noticed that virtually no one maligns the German MP 40, which had a much shorter range, and fired a less powerful cartridge.