The flat top M4 Mil-Spec upper receiver are forged CNC Machined from 7075-T6 Aluminum, the hardest and most durable material of any upper! To ensure even more strength they are Mil-Spec Type 3 hard coat anodized.
The barrel is made from the most durable material in the barrel world, 4150 Chrome Moly Steel! These barrels are NOT chromed lined because that reduces accuracy, it features Nitride Coating to increase durability and reduces wear & tear! It features a gas impingement system operating at the pistol length & a 1:8 twist. Nothing is overlooked on this barrel, it is even head spaced twice from the manufacturer for reliability!
The 15” Keymod is engineered and manufactured in Germany. This modern designed rail is made from Airplane grade Aluminum! The rails are then hard coat anodized to improve the strength! To top it off, Hera’s “Anti-Turning Milling” eliminates turning.
As everyone knows, CBC Industries assembles there uppers exclusively with Veterans of our Armed Services! These military men have a found place in their heart for the 5.56, so they mic port holes, torque to military specs. The end result, the highest quality upper assemblies for the money in the market!
Product Details: AR-15 Upper Assembly – 16″ / 300AAC / 1:8 / 15″ Keymod AR-15 Handguard / Rail
The barrel is one of the few components that directly affect the accuracy and weight of your build. This barrel has a nitride finish for increased strength and durability. This provides not only an impressive barrel life but ensures excellent accuracy. The barrel threads are carefully threaded to the .308 standard. Optimized for stability with a 1:8 twist rate, this 300 BLK barrel can handle heavier bullets used for subsonic loads with ease.
➲ Upper Receiver
The foundation of all good ARs is built upon a dependable upper receiver. CBC upper receivers offer best-in-class quality while providing you years of dependable service. Boasting a MIL-SPEC type III hard coat anodized finish and machined from 7075-T6 forged aluminum, this M4 flat-top receiver delivers a lifetime of superior function. You want your AR built upon a solid platform - this receiver gives you the confidence that your AR-15 will function when it counts most.
➲ Pistol Length Gas Tube
An essential component to your AR15 is the gas tube, which keeps your build up and running. This gas pistol-length tube is constructed from corrosion resistant stainless steel ensuring a lifetime of service.
➲ .750 Low Profile Gas Block
The gas block is a critical link in the chain that is too often overlooked. This component ensures that your AR runs reliably. Made from high-quality steel with a smooth nitride finish, this .750 low-profile gas block is efficiently designed to stay put with the percussion of gunfire. With its low profile this gas block allows it to fit under the most ergonomically designed handguards and rails on the market.
➲ A2 Flash Hider
The muzzle device is designed to perform a specific task, like suppress flash intensity or reduce felt recoil. This A2 Flash Hider is machined from quality steel and finished with an exceptionally corrosion resistant salt bath nitride for a lifetime of service. It provides effective flash suppression that preserves the shooter’s night vision by disrupting the muzzle flash when firing in low light conditions. While its closed bottom with top and side ports offers reduced dust signature when shooting from the prone position while additionally acting as a compensator.