Brn-4® Upper Receiver Assemblies With Chrome Lined Barrels

Brn-4® Upper Receiver Assemblies With Chrome Lined Barrels

Barrel Finish: Manganese Phosphate Coated
Barrel Length: 10.4''
Cartridge: AKK_5.56 x 45
Color: Black
Contour: Medium
Finish: Manganese Phosphate
Length: 10.4''
Make: Brownells
Make/Model: Brownells|Brn-4
Model: Brn-4
Muzzle: 1/2-28
Style: Assembled
Twist: 1-7
Twist Rate: 1-7


Manufacturer: Brownells
Model: