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HM Defense 16MBUP556L MonoBloc Upper 223 Rem/5.56x45mm NATO 16"

HM Defense 16MBUP556L MonoBloc Upper 223 Rem/5.56x45mm NATO 16"

Product Features & Specifications HM Defense 16MBUP556L MonoBloc Upper 223 Rem/5.56x45mm NATO 16" Chromoly Barrel w/Black Cerakote Finish, CNC Machined Muzzle Brake, 15" M-LOK Free-Float Handguard w/Long Rail, M16 Bolt Carrier Group, Anodized 7075-T6 Aluminum The MonoBloc Upper features a HM bar