Especially late production Inlands and Winchesters. They went onto the racks as is since the round bolt and type 2-3 rear sights were in place. Why tear apart a brand new carbine for the bayonet lug and flip safety? There were many "rules" overlooked on these brand new units. The Rebuild TM said that all obscured serial numbers were to be duplicated yet very few are that way. The TM said that all used carbines were to be counterbored at the muzzle yet very few are.