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 medium profile barrel is chambered in 5.56 and has a 1:7 twist rate and is also ideal for 55-85 grain bullets. The nitride finish on this barrel helps to make it less vulnerable to corrosion and also pretty durable. This barrel is dimpled which makes installing the mid length gas system easy to install and align. to allow easy and secure gas block alignment.
Guntec's AR-15 Mini Slip Over Barrel Shroud With Multi Port Muzzle Brake is 2 ? inches long and weighs 3.2oz. This new micro design is USA-made from high-strength T6 aluminum. This innovative muzzle brake is a dual-purpose unit meaning it functions as a barrel shroud and muzzle compensator. The multiple ports reduce felt recoil up to 70%. Guntec USA has truly outdone itself with this innovative, micro muzzle brake.
Included Is A Premium Davidson Defense Side Charging Billet Upper Receiver That Is Anodized. This Upper Is Compatible With AR-15 Uppers And Is Made From High End 7075 T6 Aircraft Grade Aluminum.
This 3rd Gen Buyout is 15-inches long and features a curved picatinny rail for optimal mounting of accessories. It is crafted from durable material with a strong, durable finish.
An AR-15 side charging bolt carrier group is a piece of a firearm that houses many key parts such as the firing pin, gas key, cam pin, extractor, and bolt. With all these pieces working together the BCG can grab and feed another round out of the detachable magazine chamber. During the extraction of a cartridge, the BCG works to absorb the force of the explosion by expanding gas in the carrier. Throughout this process, gas is tapped off from the barrel and sent into the cup inside of the gas key which creates an inertial force that sends the Bolt Carrier Group back into the buffer tube. This entire process helps to reduce recoil.