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 Made from 1055 carbon steel

Made from 1055 carbon steel and finished with a black

Shotgun QD Super Swivels mounts for most pumps and autos includes special adapter for Beretta 390 magazine cap also included for most pump and auto magazine caps

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

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

The custom-tuned tone board ensures flawless performance

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 Made from 1055 carbon steelCMMG'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.