Heckler and Koch MR556 SA 5.56 / .223 Rem 16 Barrel 10-Rounds

H&K MR556 A1 Features A direct descendant of the world-famous HK416 the MR556SA is the commercial carbine from the same DNA. It offers the battlefield-proven reliability durability and precision you would expect from a rifle that bears the name Heckler & Koch. The MR556SA is assembled in the USA using US and German-made components and uses many of the same parts and assemblies developed for the HK416. Like the HK416 the MR556 SA uses a proprietary HK short-stroke gas piston in place of the direct-gas-impingement system found on lesser AR15-style rifles that propels exhaust gas into the upper receiver to operate the action. In the closed HK piston system exhaust gasses never enter the receiver which means the HK runs cooler cleaner and more reliably. When adverse conditions like dust sand and mud are introduced the advantage of the HK system becomes even more drastic. That is why so many of the worlds elite military and law-enforcement customers have absolute trust in their HKs. H&K MR556 A1 Specifications Brand: Heckler & Koch Model: MR556 SA Category: Tactical Rifles Caliber: 5.56x45mm NATO Capacity: 10+1 Stock Material: Synthetic Action: Semi-Auto OAL: 33.90- 37.68 Hand: Right Sights: Optic Ready Twist: 1:7 Gun Platform: AR-Style Magazine Type: OEM Grips: Black Polymer Handguards: M-LOK Receiver Material: Aluminum Stock Description: Adjustable Barrel Description: Medium Contour Barrel Length: 16 Receiver Finish: Black Weight: 8.60 lbs Stock Finish: Black Features: Hellfighter MOD Kit