Mercury Precision "Comet" LR-308 .308 WIN 20", Rifle Gas, 1-10T, Nitride Barrel
The Scientists And Engineers Have Been Hard At Work In The Workshop And Laboratory Creating A Barrel That Is Out Of This World. The End Result Of This Brain Trust Is A Barrel Brand Simply Known As Mercury Precision. Mercury Precision Barrels Are Machined From F.J. Feddersen Match Grade Blanks That Have Been Button Cut To Very Space Grade Specifications, The End Result Being A Very High-End Product. The Goal With Mercury Precision Was To Create A High-End Barrel That Does Not Require A Space Travel Budget To Afford.
This Mercury Precision "Comet" Barrel Is 20" Long And Is Made From 4150 CMV And Has A High-Quality QPQ Black Nitride Finish. This Treatment Increases The Barrel's Hardness Significantly And Makes It Extremely Corrosion Resistant. This Barrel Comes With A 1:10 Twist Rate, Features A 5/8x24 Thread Pitch, And Is Has A Rifle Length Gas System.
General Barrel Info: The barrel on an LR-308 and 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 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: The Barrel is made by Mercury Precision and it is 20" long, and is machined from 4150 Chrome Moly Vanadium and finished in a nitride appearance. Chambered for .308 Win, using a medium profile design, this barrel will fit your next LR-308 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 20" 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.
SPECIFICATIONS:
Brand: Mercury Precision
Model: "Comet" LR-308 .308 WIN 20", Rifle Gas, 1-10T, Nitride Barrel
Platform: LR-308/AR-10
Classification: Rifle
Caliber: .308 Win
Length: 20
Handguard Compatability: Freefloat
Gas Port Size: 0.75
Gas Length: Rifle
Profile: Medium
Twist Rate: 1:10
Finish: Nitride
Material: 4150 Chrome Moly Vanadium
Thread Pitch: 5/8x24
Please note: If the listing says "In-Stock" it means we have the item(s) in stock. Please check this LINK to view our most up to date shipping status. Warranty, Returns & Terms: MMC Armory offers a 30 day return, refund and exchange policy. You must email or call MMC Armory and obtain an RMA number prior to any return, refund, or exchange. All returns must include the original order number, receipt or invoice, along with the customers billing address, shipping address, contact phone numbers, contact emails, and RMA number. Returns, refunds, and exchanges may take up to two weeks, not including transit times, for processing after we have received return product. Return shipping costs will be the responsibility of the returning party, with the exception of the wrong item being received or on warranty exchange during the first 30 days after delivery. Items returned for warranty will only be replaced or exchanged, no refund given on warranty items.
