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.
This 4150 CMV barrel has a 1:8 twist rate which provides an advantage to shooters who are looking for a more universal barrel. It's crafted from 4150 CMV which is Mil-Spec gun steel that does a great job handling heat which helps it maintain its accuracy. The nitride finish increases the barrel's durability and makes it less susceptible to corrosion. This barrel has a carbine gas system and is dimpled to allow for easy and secure gas block installation and alignment.
This Upper Includes A Muzzle Steel Can Muzzle Device From Recoil Technologies. This Is A Solid 6061 Aluminum Device That Is Designed To Direct Muzzle Gases And The Muzzle Flash Forward. Threaded 1/2-28 For 9mm Or Similar Weapons With A Black Military Type Hard Anodizing. This Device Is Not Designed To Reduce Recoil, Muzzle Rise, Or Flash Signature. This Device Is Designed To Direct Gasses And Noise Forward Away From The Shooter And Enhance The Weapons Appearance. A Crush Washer Can Be Used Is Specific Timing Is Desired. This Device Can Withstand Full Auto Hard Use, No Back Pressure Is Created So Gas Cutting Is Not A Problem. Many End Users Have Reported Thousands Of Rounds Downrange With No Change Or Erosion.
This Build Features The "Vertex" Pistol AR-15 Caliber Billet Upper Receiver. The Vertex Upper Is Machined Out Of A Single Block Of 7075 T6 Billet Aluminum In Order To Create Its Intricate Lines And Angles And Finished With A Hard Coat of Black Anodization. The Vertex Upper Was Designed To Be Used With Pistol Calibers Specifically And As A Result Doesn't Have A Dust Door Or Forward Assist. This Was Done To Save Weight As Well as Improve Functionality And Reliability By Focusing On A Simple Design That Has Fewer Moving Parts And Therefore Fewer Parts That Can Break, All The While Not Compromising On Strength And Durability. This Upper Will Fit On A Traditional Mil-spec Lower Receiver Or A Pistol Caliber Specific Lower Receiver.
This Upper Features Hex, A Unique AR Handguard. The Handguard Features Unique AR's Signature Engraving Style In Their Exclusive Hexagon Design. Made From Anodized 6061 T6 Aluminum. This Handguard Allows You To Comfortably Grip Your Rifle In A Variety Of Shooting Positions And Securely Mount A Variety Of Accessories Utilizing Unique AR's Exclusive Attachment System.