10.5" Ground Zero Precision 300 Blackout AR-15 Pistol Barrel - Parkerized

$ 113.49

Ground Zero Precision

This premium 300 Blackout barrel is manufactured on state of the art CNC equipment under rigorous ISO 9002 Quality Control Standards. From material selection to the first turn of the lathe, to drilling, reaming, rifling, turn, chamber and gas port creation, pinning of the Barrel Extension, drill the gas hole, and mill the flutes, careful attention is paid at each and every step and all features are completed on the latest CNC Equipment. The Barrels are manufactured under the ISO 9002 Quality System, and each barrel goes through a Final Inspection before shipping.


Caliber:                        300 AAC Blackout

Length:                        10.5”

Twist:                           1:8

Threaded:                    5/8 x 24

Finish:                          Parkerized (Black Phosphate)

Profile:                         Heavy Barrel

Material:                      4150 Gun Quality Steel, Heat Treated to RC 28-32 Hardness, and Stress Relieved

Feed Ramps:              Yes

Flutes:                         No

Gas System:               Pistol

Gas Block Diameter:  0.750

Gas Hole Diameter:    0.072

All NFA/ATF Rules Apply
You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Installation of this barrel on a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.