General Barrel Info: The barrel on an LR-308 originally operates under a 'gas impingement' system' by tapping gas off of the barrel and cycling it back through the gas system to assist the bolt carrier in unlocking and extracting the spent cartridge. LR-308 Barrels come in four different specifications for gas systems, Pistol, Carbine, Mid-Length, and Rifle. LR-308 Barrels vary between profiles as well as from Government, to Heavy, and Slim. Thanks to the modularity of LR-308, you can choose different calibers starting with the barrel, each with its specific twist rates. Choosing your barrel for your next LR-308 build has never been easier.
About This Barrel: Avid fans of long-range shooting need to take a look at this barrel. This 18-inch barrel made from 41V50 steel is chambered in .308 and has a stainless steel barrel extension. The 41V50 steel helps to add strength and heat resistance to this barrel. It features a nitride finish that adds to its durability and has a 1:10 twist rate. Shooters looking to do big game hunting or long-range shooting will want to go with this medium profile barrel.
About the Profile: Medium - Medium Profile barrels are designed to have an even weight distributed from the beginning to the end of the barrel, this results in a rather tubular looking appearance but with identical rigidity and properties to a government profile barrel.
Barrel Classification: Rifle
Length: This Barrel is designated as rifle barrel with a overall 18" length.
Caliber: .308 WIN - This barrel is chambered in .308 Winchester otherwise known as 7.62x51 NATO. .308 Win is the standard caliber for LR-308/AR-10 rifles of old & modern battle rifles from the 70s onward. Featuring amazing long-range accuracy and energy delivery, 308 Winchester is the most common hunting and long rifle round in America.
Material: 4150 CrMoV - Chrome-Moly Vanadium, or simply "CMV", is the official mil-spec gun steel developed by Colt Firearms for the military-issued M16 and M4. It contains the same elements as 4150 steel. It also contains Vanadium. Vanadium significantly increases the strength, hardness, and high-temperature stability of the steel.
Finish: Nitride - Nitriding is a process during manufacturing that diffuses nitrogen into the steel to make a case-hardened surface for improved resistance and strength. A Nitrided barrel typically has a gloss black texture.
Thread Pitch: 5/8x24 - 5/8x24 Threads are commonly found on barrels chambered in .30 Cal and up. Usually .308 Win, .300BLK, 6.5 Grendel, 6.5 Creedmoor, and 7.62x39. Muzzle Devices such as flash hiders, blast cans, and compensators will work with this barrel.