- MANUFACTURER: Heckler and Koch (HK USA)
- FAMILY: MR556 Series
- MODEL: MR556A1
- TYPE: Rifle
- ACTION: Semi-Auto
- CALIBER/GAUGE: 223 Rem | 5.56 NATO
- FINISH: Matte
- FINISH TYPE: Black
- STOCK: Collapsible / Folding Stock
- STOCK/GRIPS: Black Furniture
- BARREL: 16.5″
- OVERALL LENGTH: 33.9″ to 37.68″
- RATE-OF-TWIST: 1-in-7″
- CAPACITY: 30 + 1
- # OF MAGAZINES: 1
- MAG DESCRIPTION: 30 rd.
- WEIGHT: 8.60 lbs.
- SHIPPING WEIGHT: 17.05 lbs.
- ADDL INFO: M-LOK Handguard
- MFG MODEL NO: 81000579
- UPC: 642230262553
