Chambered for 5.56x45 NATO, originally derived from .223 Remington, 5.56 NATO is the standardized and most popular cartridge developed for the AR-15 platform. Utilizing a .22 Caliber projectile, the low mass, high-velocity cartridge allows superior weapons handling with manageable recoil and high accuracy. With a wide variety of ammunition choices on the market, 5.56 NATO chambered AR-15s are 'multi-caliber' and can reliably fire both 5.56x45 NATO and .223 Remington cartridges.
This barrel is 16-inches long and made from 4150 steel with a nitride finish to improve its strength and longevity. It is chambered in 5.56 NATO and has a 1:7 twist rate. This reliable barrel has a Government profile and operates on a mid gas system.
This A2 flash hider has a classic and effective design. Flash hiders are essential in position concealment and keeping your vision clear; especially in low light situations. This design has a flat bottom which means the gasses won't kick up dust because they are directed up and to the sides. It has a 1/2x28 thread pitch and a Manganese Phosphate finish to protect it from corrosion. This A2 flash hider is a classic because it simply does a great job.
This Cobalt Kinetics Slick Side Upper Gen 1 includes a 12-inch handguard made from high-strength material with a durable finish. This upper has a clean, sleek design and is a great option for your next build.
