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 The custom-tuned tone board ensures

The custom-tuned tone board ensures flawless performance

Extremely loud

Made from 1055 carbon steel and finished with a black

Its also features spine and choil jimping for precise control during use and a four-position clip that supports all possible carry configurations

Cyclops' TF1500 Tactical Flashlight features a spot to flood magnifier beam that reaches a distance up to 360 meters

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 The custom-tuned tone board ensuresCMMG'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.