Barrel is marked B MP 5.56 NATO 1/7
The barrel is chrome lined. There are light scratches on this upper & carry handle from being stored with other guns. It was knocked around a little. The front sling swivel was taken off & replaced with a side sling mount.
I don't see any markings on the bolt carrier so I dont know who made it.
Sorry about the crumby pics but there better then nothing
$475.00 shipped to the lower 48I will only take a United Stated Postal money order as payment. Absolutely no other forms will be accepted.