Heckler & Koch MR556 A4 5.56x45mm 10+1 10" Semi-Auto Rifle, Black - 81001202

The HK MR556 A4 is a 5.56x45mm semi-auto rifle with an 11" threaded barrel and 10+1 capacity. It features an M-LOK handguard, Picatinny rail receiver with Patriot Brown finish, ambidextrous safety, 6-position synthetic stock, and weighs 6.61 lbs. This is a modular platform suitable for customization and tactical applications.