This is a factory replacement magazine for the Ruger AR-556 rifle and pistol and the SR-556 Takedown rifle chambered in 300 AAC Blackout. Factory replacement magazines are manufactured to the same specifications and tolerances as the original equipment magazines from Ruger, ensuring perfect fit and function.

Caliber: 300 AAC Blackout

Capacity: 30 rounds

Finish: Black

Material: Steel

Fits: Ruger AR-556 rifle & pistol SR-556 Takedown rifle