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.
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.
Including A 1/2x28 KAK Industry Compensator, This Muzzle Device Is Similar In Function And Size To An A2 Flash Hider. The Gas Ports Help Channel Gases And Therefore Reducing Muzzle Rise Enabling The Shooter To Get Back On Target Faster For Follow Up Shots. Made From 4140 CMV Steel In The USA With Manganese Phosphate Finish Made This A Robust And High-Quality Muzzle Device.
This Aero AR-15 upper receiver features a standard 'Mil-Spec' design made from forged 7075-T6 Aircraft Grade Aluminum. This durable design comes with a standard rifle ejection door. The anodized finish only adds to its resilience against wear and tear. There is also a 1913 Picatinny rail and T-Marks to ensure users have enough room to add additional accessories. Made by Aero Precision, the Aero stripped upper is precision CNC machined and ready for your next build!
This is a Two-Piece Carbine Length Quad Rail
