Heckler & Koch MR556 A4 5.56 NATO 16.5" 10+1 Rifle, Gray Cerakote - 81001309

The Heckler & Koch MR556 A4 is a semi-automatic rifle chambered in 5.56 NATO with a 16.5" threaded barrel and 10+1 capacity. It features a short-stroke gas piston system, fully ambidextrous lower receiver, HK416 upper receiver with M-LOK handguard, and HK416 slimline furniture with a collapsible stock. Overall length ranges from 33.25" to 36.5" and weighs 7.67 lbs.