These are Chinese Mak90 barrels made here in house! The end of the barrel is threaded in 14-1LH. Handguard retainer slot on top has been cut. Made from 4150 Chrome Moly steel , Gas Port not drilled, outer suface in the white.
These are made for MAK90 Parts kits ONLY.
This item is made in the United States and counts as a 922r compliant part.