ELD Performance AR-15 16" 5.56 NATO Front Sight Base Barrel, Carbine Gas,
Government Profile, 1:8T, 4150 CrMoV, Nitride, A2 F-Marked FSB, M4 Extension
Includes Round Handguard Cap & Delta Ring Assembly
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, pistols, Carbine, Mid-Length, and Rifles. AR-15 Barrels vary between profiles as well as 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: Looking to start a new retro AR-15 build? This 16-inch Front Sight Base Barrel operates on a carbine gas system and has a 1:8 twist rate. It is crafted from 4150 CMV with a high-strength black nitride finish. It features an A2 F-Marked Base Gas Block and a round handguard cap and also includes the A2 Delta Ring Assembly for quick installation for drop-in handguards. This barrel will make a great addition to your next 5.56 NATO build.
About the Profile: M4 - The M4 barrel profile is lightweight under the handguards, until just before the gas port. After the gas port, it gets heavier, out to the muzzle.
Barrel Classification: Rifle
Length: This Barrel is designated as a rifle barrel with an overall 16" length.
Caliber: 5.56NATO - This barrel is chambered to fire both 5.56 NATO and .223 Remington, the most commonly used round designed for the AR-15 platform.
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 steel.
Finish: 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: 1/2x28 - This threading is commonly found on barrels chambered in 5.56, .223, and .224. This will allow the installation of most muzzle devices such as flash hiders, blast cans, and compensators threaded to 1/2x28 threads.
Brand: ELD Performance
Model: 16" 5.56 NATO Front Sight Base Barrel, Carbine Gas, Government Profile, 1:8T, 4150 CrMoV, Nitride, A2 F-Marked FSB, M4 Extension, Includes Round Handguard Cap & Delta Ring Assembly
Caliber: 5.56 NATO
Handguard Compatibility: Drop-In
Gas Block Shelf: 0.75
Gas Length: Carbine
Twist Rate: 1:8T
Material: 4150 Chrome Moly Vanadium
Thread Pitch: 1/2x28
Note: Front Sight Post Assembly Not Included (Post, Detent, and Spring)
Delta ring assembly including barrel nut is not installed as shown
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