Description

2022 Brand New never fired HK MR556A1 Complete Upper Receiver, 223 Remington/556NATO, 16.5" Cold Hammer Forged Barrel, Black, M-Lok Free Float Rail, Flash Hider, Complete MR556 Bolt Carrier Group, Proprietary Tungsten Buffer, Proprietary Buffer Spring. Includes HK Rifle bag. Complete MR556 Bolt Group Assembly Tungsten Filled HK Proprietary Buffer HK Proprietary Buffer (Action) Spring HK 16.5 inch chromed cold-hammer forged barrel, upper receiver with forward assist, extended convertible charging handle MLOK handguard

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