That's my thoughts too...considering that the metal heat shield is a civilian add on, combined with the sights and usual depot level upgrades (bayonet lug, flip safety, etc...) it's not much of a collector's piece.I can tell you the the 33rd Edition of the Blue Book of Gun Values says an I.B.M. M1 Carbine is worth from $295 for a 60% gun up to $950 for a 100% gun. With that being said, with the gun situation the way it is right now I would not venture a guess on the value. Besides, it is only worth what someone will give you for it.
Just from seeing those two pictures, I would say that the condition looks to be 90% - 95% and that would put the value at $425-$525 according to the Blue Book. Mine appears to be in about the same condition as your and as I said in the other thread, I would not sell it for less than $1000. But then you add that 2000 rounds of ammo and that increases the value by quite a bit.
That is the best I can tell you! I am sure there are some Carbine "experts" out there that will tear my comments to pieces!!
The ammo was mentioned in his first post asking for a value, and the OP started another thread when asked for photos.I didn't see any mention of 2000 rounds of ammo, but that many rounds of GI ammo is worth around $1000 these days. Your IBM is a decent condition mixmaster shooter and the average price for these has jumped up to $800 to $900 recently, a couple of hundred dollars more than they were bringing only a year or so ago.