Using the HK-proprietary operating system, the MR762A1 is gas operated and uses a piston and a solid operating “pusher” rod in place of the common gas tube normally employed in AR15/M16/M4-style weapons. The MR762A1 uses the same 10- and 20-round translucent polymer box magazines made for the HK417; a 5-round magazine is also under development. MR762A1 rifles are well-suited for a variety of applications including law enforcement tactical, police patrol, general sporting, and hunting (a 5-round magazine is under development). Introduced in January 2012, the MR762A1’s Suggested Retail Price is $3,995.