CMMG 30DF80A Barrel Sub-Assembly 300 Blackout 16.10" Black Nitride Finish 4140 Chromoly Steel Material Carbine Length with Multi Role Profile for AR-15 Grips and Recoil Pads *This primer is compatible with

*This primer is compatible with Large magnum pistol calibers like 500 Linebaugh

The Axe Head Cane represents the culmination of years of design and development

Bond Arms Back Up

Made from 1055 carbon steel and finished with a black

CMMG 30DF80A Barrel Sub-Assembly 300 Blackout 16.10" Black Nitride Finish 4140 Chromoly Steel Material Carbine Length with Multi Role Profile for AR-15 Grips and Recoil Pads *This primer is compatible withCMMG's Barrel Sub Assembly is ideal for building your custom AR 15 upper group. It comes with properly installed M4 barrel extension. The barrel is constructed of 4140 chrome moly with a slat bath nitride finish and 5 8x24" threads.