Brn-4 Barrels 5.56X45MM
Cartridge: AKK_5.56 x 45
Contour: Medium
Finish: Black Nitride
Gas System Length: 416
Length: 14.5''
Make: Brownells
Make: Heckler & Koch
Make/Model: Brownells|Brn-4
Make/Model: Heckler & Koch|HK416
Make/Model: Heckler & Koch|Mr556
Model: Brn-4
Model: HK416
Model: Mr556
Muzzle Threads: 1/2-28
Twist: 1-7
Manufacturer: Brownells
Model: Caliber: Ensure that the barrel is chambered for the 5.56x45mm NATO or .223 Remington caliber, depending on your rifle's requirements.
Length: Barrels come in various lengths, and the choice depends on factors such as the intended use of the rifle (e.g., long-range precision, close-quarters, etc.) and personal preferences.
Material: Barrels are commonly made from materials such as stainless steel or chrome-moly steel. The material can affect factors like durability, weight, and heat dissipation.
Twist Rate: The twist rate of the barrel's rifling affects the stabilization of bullets. Common twist rates for 5.56mm barrels are 1:7, 1:8, or 1:9.
Profile: Consider the barrel profile, which can influence weight, heat dissipation, and aesthetics. Common profiles include government, lightweight, and heavy.
Gas System: If your rifle uses a gas-operated system, ensure that the barrel's gas system (e.g., carbine, mid-length, rifle) is compatible with your firearm.
