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 weapon 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.
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.
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.
Built On An Upper Receiver Forged From 7075-T6 Aluminum. This Stripped Upper Is Precision Machined To Mil-spec M16/M4 Specifications And Features M4 Feedramps.
This Upper Includes An A*B Arms Pro Handguard 2 Piece Drop-In Handguard. This Hand Guard Is A Two Piece Design With Upper And Lower Heat Shields For Maximum Cooling. Designed And Engineered To Accommodate Gas Piston Or Direct Gas Impingement Systems. Purpose Built Ergonomic Hand Grip Area With Hand Stop And Textured Surface. Proprietary Formula Of Heat Stabilized Nylon Reinforced With High Strength Fibers.