Our USA new production AIMS-74 barrels are copies from a factory original Romanian Military AIMS-74 take off, only now we offer them in 5.56. We are making these in house out of 4150v CrMoV barrel blanks. The AK-Builder AIMS-74 barrels have the extractor cuts, and handguard retainer cuts pre-machined. We have also dimpled where the gas hole goes. The gas hole is NOT drilled through. These barrels have a 1-9 twist. Trunnion journal is .908".
This item is made in the United States and counts as a 922r compliant part.