Mercury Precision "Black Hole" AR-15 16.5" .350 Legend, Carbine Gas, 4150 QPQ Nitride Barrel
General Barrel Info: The barrel on an AR-15 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. AR-15 Barrels come in four different specifications for gas systems, Pistol, Carbine, Mid-Length, and Rifle. AR-15 Barrels vary between profiles as well from Government, to Heavy, and Slim. Thanks to the modularity of AR-15, you can choose different calibers starting with the barrel, each with its specific twist rates. Choosing your barrel for your next AR-15 build has never been easier.
About This Barrel: The Barrel is made by Mercury Precision it is 16.5" long, and is machined from 4150 Chrome Moly Vanadium and finished in a nitride appearance. Chambered for .350 Legend, using a medium profile design, this barrel will fit your next AR-15 build perfectly.
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 a rifle barrel with an overall 16.5" length.
Caliber: .350 LGND - This barrel is chambered in .350 Legend, .350 Legend was designed for hunting in states with restrictive huntings laws against straight wall centerfire rifle cartridges. .350LGND was designed from its parent case the .223 Remington and adapted for use in the AR-15 platform using a 9mm projectile that's incredibly effective at long range for hunting deer and other games.
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 have 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.
Brand: Mercury Precision
Model: "Black Hole" AR-15 16.5" .350 Legend, Carbine Gas, 4150 QPQ Nitride Barrel
Caliber: .350 Legend
Handguard Compatability: Freefloat
Gas Port Size: 0.75
Gas Length: Carbine
Twist Rate: 1:16
Material: 4150 Chrome Moly Vanadium
Thread Pitch: 5/8x24