Almost impossible to get a 'correct' early carbine during that program, because they basically didn't exist in government stocks after the big rebuild programs and the Korean War, at least not in statistically significant numbers. Maybe a few were unmolested but they were supposed to have been upgraded when turned in after any issuance or when sent for repair. The men using them wanted the upgrades, so I imagine nobody wanted to get stuck with an 'old' WWII Carbine. Some upgrades were done on the unit level too.