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
Specifications
| Capacity | 10+1 |
| Barrel Length | 16.5in |
| Finish | Blued |
| Stock | 6 Position |
| Sights | None, Optics Ready |
| Weight | 8.78lbs |
| Action | Semi Automatic |
| Cartridge | 5.56mm NATO |
| Color | Black |
| Overall Length | 37in |
| Product Line | MR556 A1 Competition |
| State Compliance | Colorado Compliant Washington Compliant |
| Twist | 1:7in |
| Type |
Centerfire
|
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