For many years I kept a Universal Carbine [M1 Carbine copy] on the wall above my bed, it had 2 loaded 30-round mags taped together and I slept good with it there, never mind the several other dozen I had to pick from... :)
I was given a Universal which needed a bolt job. After putting an Iver Johnson heat treated bolt and parts in it, it shoots like a dream and have never had a jam or miss-feed in the four hundred plus rounds I’ve put through it. Takes GI mags and eats any 30 cal ammo I feed it (from Privi, or Remington, or IMI, etc.). 110 gr ball ammo for range, soft lead head hollow points for home defense.