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The profile of these barrels are for Bulgarian AK74 rifles.
Made from 4150 1-9 twist Chrome Moly steel and black nitrided. The handguard retainer slots and extractor clearance cut has also been done on these barrels. The gas port IS NOT drilled.
Made in the USA and Stamped for 922r Compliance.
This item is made in the United States and counts as a 922r compliant part.