HK Mr556, Hk 81000827 Mr556 A4 16.5" 1-30r 223 Rem | 5.56 Nato Rifle (30-Round)

HK headlines the specification sheet for this platform. Factory literature categorizes it as a modern sporting rifle, which frames expectations for handling and use. Factory chambered in 5.56x45mm, built around a semi-auto action with a 30+1 round capacity to keep performance predictable from shot to shot. Dimensional notes call out a barrel length of 16.50" in and overall length measuring 36.50" in, helping you plan cases and storage. Unloaded weight settles near 7.67 lbs, which influences recoil management and carry options. Furniture is trimmed in synthetic with a black finish, giving the rifle its classic profile. Metalwork wears a cerakote treatment, pairing durability with period-correct styling. Stock appointments include smooth furniture without checkering and a fitted recoil pad. Overall dimensions ship at 4.35 X 13.50 X 43.80, so plan case and safe clearance accordingly. Magazine system uses a detachable design, making reloads faster between strings. Without a hinged floorplate you will cycle rounds out manually when clearing the rifle.