Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly head spaced.
MANUFACTURER: CMMG
MPN: 30D120A
MODEL: 0
Type of Barrel: 01:07:00
Barrel Length: 16.1″
Description: Carbine
Finish: Salt Bath Nitride
Caliber: 300 Blackout
Type: Barrel
Color: Black
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