Complete AR15 Upper, 338 ARC, 8.5" Barrel, 7.2" MLOK, 1:5, Nitride

Fast%20Twist%201%3A5%0AChamber-%20338%20ARC%0A%26bull%3B%20Barrel%20Material-%2041V50%0A%26bull%3B%20Length-%208.5%22%0A%26bull%3B%20Gas%20system-%20Pistol%20Length%0A%26bull%3B%20Threads-%205%2F8-24%0A%26bull%3B%20Finish-%20Nitride%0A%26bull%3B%20Twist-%201%3A5%0A%26bull%3B%20Gas%20Block-%20Low%20profile%20.750%20Phosphate%20Finish%0A%26bull%3B%20Charging%20Handle-%20Milspec%20with%20Enhanced%20Large%20Billet%20Latch%0A%26bull%3B%20Upper%20Receiver-%20Forged%207075%20T6%20Aluminum%2C%20Precision%20Machined%20to%20M16%2FM4%20Spec%0A%26bull%3B%20Handguard-%207.5%22%20High%20Quality%206061%20T6%20Material%20Mlok%20with%20Proprietary%20Clamping%20System%20and%20Heavy-Duty%20Barrel%20Nut%0A%26bull%3B%20Weight-%203.2%20%23%0AKAK%20recommends%20400%20legend%20mags%20for%20these%20barrels%20to%20function%20best%20with%20the%20307%20subsonic%20ammunition%20bullet%20profile%0ABCG%26nbsp%3Bchrome%20lined%20phosphate%20comes%20standard%2C%20K-SPEC%20Enhanced%20BCG%20upgrade%20available%0A%0AM16%20Auto%20Profile%20Carrier%20Machined%20from%20Aircraft%2F%20Bearing%20Quality%208620%20Steel%2C%20Properly%20Heat%20Treated%2C%20Ground%20to%20Perfection%0ABolt%20is%20machined%20from%20a%20single%20piece%20aircraft%2Fbearing%20quality%209310%20steel%2C%20heat%20treated%20properly%2C%20precision%20ground%2C%20Shot%20Peened%20and%20MPI%26rsquo%3Bd%0AFiring%20pin%20is%20machined%20to%20the%20mil-spec%20print%20from%208740%2C%20precision%20ground%2C%20and%20chrome%20plated%0AOne%20Piece%20Billet%20Fully%20Machined%20Enhanced%20Extractor%2C%20Phosphate%20coated%20for%20Increased%20reliability%20and%20corrosion%20resistance%0AS7%20tool%20steel%20ejector%20and%20extractor%20retaining%20pin%0A4130%20Gas%20Key%2C%20precision%20staked%20using%20our%20hydraulic%20staking%20machine%0AKAK%20Carrier%20Key%20Screws-%20T25%20drive%2C%20Grade%208%2C%20Properly%20Heat%20Treated%0A%0AAll%20KAK%20complete%20upper%20receivers%20are%20test%20fired%20for%20feed%20and%20function%20using%20commercially%20loaded%20ammunition%0A%26nbsp%3B%0AVelocity%20Data%20with%20OUR%20Barrels%20Using%20Factory%20Hornady%20supers%20and%20subs%0ANote-%20This%20data%20is%20on%20brand%20new%20barrels%2C%20you%20can%20expect%20velocities%20to%20increase%20once%20they%20break%20in%0A%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%26nbsp%3B175%26nbsp%3Bgr%20supersonic%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%26nbsp%3B307%26nbsp%3Bgr%20Subsonic%0A16%22%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B2075%26nbsp%3BFPS%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B1030%26nbsp%3BFPS%0A10.5%22%26nbsp%3B%20%26nbsp%3B%26nbsp%3B1940%26nbsp%3BFPS%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B1014%26nbsp%3BFPS%0A8.5%22%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%26nbsp%3B1850%26nbsp%3BFPS%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B%20%26nbsp%3B1003%26nbsp%3BFPS%0ANote-%20We%20gas%20our%20barrels%20to%20run%20subsonic%20ammunition%20with%20a%20suppressor%2C%20a%20suppressor%20is%20required%20for%20full%20functionality%20when%20shooting%20subsonic%20rounds.