APVG200003A

Aero Precision GammaMB300 BlackoutBlackNitrideFeatures:Material: 17-4ph Heat Treated Stainless SteelFinish: BLACKNITRIDE – Satin Finish(Half Gloss)Surface Hardness: 68RCCaliber: 300AAC Blackout/.308 WinThread: 5/8×24 RHWeight: 1.92 oz