HK MR556 A1 Competition 5.56mm NATO 16.5in Black Semi Automatic Modern Sporting Rifle - 10+1 Rounds - Black

HK MR556 A1 Competition 5.56mm NATO 16.5in Black Semi Automatic Modern Sporting Rifle - 10+1 Rounds - The MR556A1 also has a Picantinny rail machined into the top of its upper receiver for mounting optics and mechanical sights. Unlike earlier prototypes, major subassemblies, including the MR556A1 upper receiver/barrel assembly, are fully interchangeable with other high quality AR-style firearms. MR556A1 upper receiver kits can be used to retrofit competing legacy AR systems. Cold Hammer-Forged Barrel The Piston Operating System Uses A Gas Pistol And Pusher Rod Magpul CTR Buttstock Is Easy to Adjust Includes One 10-Round Magazine Two-Stage Trigger Ambidextrous Safety Compensator Muzzle