Physical
The physical qualities of the Ruger AC-556. Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.
984 mm
38.74 in
O/A Length
470 mm
18.50 in
Barrel Length
6.37 lb
2.89 kg
Weight
Gas-Operated, Rotating Bolt; Select-Fire
Action
5.56x45mm
Caliber(s)
20- or 30-Round Detachable Box Magazine
Feed
Iron front and rear
Sights