LBE Unlimited AR-15 Barrel Features The LBE Unlimited AR-15 Replacement Barrel is cold hammer forged a manufacturing process known for producing exceptionally durable rifling that resists erosion from heat and repeated firing better than button rifled alternatives. Chambered in 5.56x45mm NATO the barrel is also capable of safely firing .223 Remington ammunition giving builders flexibility in ammunition selection. The black nitride finish applied over the steel barrel provides strong resistance to corrosion and wear while maintaining a consistent low maintenance appearance over years of use. At 12.50 inches this barrel falls into a popular pistol length category for AR platform builds focused on compact size and maneuverability. A 1/2x28 threaded muzzle allows the installation of standard muzzle devices including compensators flash hiders or a suppressor mount giving builders room to customize the barrel s end performance. The barrel is designed as a direct fit for AR-platform rifles and pistols simplifying installation into an existing upper receiver. Rifled bore construction ensures consistent accuracy that matches or exceeds factory original AR barrels in this length range. For builders assembling a short AR-15 pistol or looking to replace a worn barrel the LBE Unlimited option offers cold hammer forged durability at an accessible price point. LBE Unlimited AR-15 Barrel Specifications Manufacturer: LBE Unlimited Model: AR-15 Replacement Barrel Compatible Hosts: AR-Platform Caliber: 5.56x45mm NATO Color: Black Material: Steel Finish: Black Nitride Barrel Type: Cold Hammer-Forged Length: 12.50 Bore Type: Rifled Thread Pattern: 1/2x28 Barrel Length: 12.5 Available At: GrabAGun