Heckler & Koch HK MR556 Competition 5.56 NATO Rifle HK-CR556-A1

With input from competitive shooters, Heckler & Koch developed the MR556A1 Competition Model which is ideal for 3-gun matches. The MR556A1 Competition features a 14" modular rail system, special target rifle takedown pins, extended latch charging handle, free-floating barrel-to-handguard, extended magazine release, keyhole attachment system, two-stage trigger, ambidextrous safety/selector level, Operator Suppressor Systems Inc. compensator, easily adjustable Magpul CTR buttstock, cold hammer forged German-made long service barrel, and a piston operating system with a gas piston and pusher rod. Heckler & Koch HK MR556 Competition 5.56 NATO Rifle HK-CR556-A1