M1A1 Paratrooper. Real McCoy?

[USGI]

The "jungle clips" are aftermarket items, 80's sounds about right. The brass cases are USGI Lake City 1944. If it doesn't look like it's been reloaded, I would shoot or just keep - that's up to you. None of the US made carbine ammo was corrosive. The trigger is blue as it should be. - Bob