When was AR 15 oralite-eng co code 1135-1673 manufactured?

The AR 15 Oralite-Eng Co. code 1135-1673 was manufactured in 1974. This information typically relates to the specific production run of the AR-15 firearm, which has seen various iterations and manufacturing dates since its original design in the late 1950s. If you need more specific details about this particular model or code, further context might be required.