Bear Creek Arsenal BC-15 6mm ARC 18in Upper Receiver Heavy Mid-Length 1-8 5/8x24 Flash Hider Parkerized FDE. . Established working with some of the most heavy duty and long lasting resources in existence these AR15 Upper Receivers by Bear Creek Arsenal can provide a product that will give you numerous years of stability. Bear Creek Arsenal has been making top quality merchandise for a very long time and the Bear Creek Arsenal BC-15 6mm ARC 18in Upper Receiver is their way of showing you how much they care. At OpticsPlanet we ensure that it is our responsibility to get the best solution for all your specifications and exhibiting the Bear Creek Arsenal BC-15 6mm ARC 18in Upper Receiver is something that we're delighted to offer. Specifications for Bear Creek Arsenal BC-15 6mm ARC 18in Upper Receiver: Manufacturer: Bear Creek Arsenal Caliber: 6mm ARC Barrel Length: 18 in Barrel Profile: Heavy Gas System Length: Mid Length Barrel Twist Rate: 1-8 Threads per Inch: 5/8x24 Muzzle Device: Flash Hider Finish: Parkerized Color: Flat Dark Earth Gun Model: AR-15 Handguard Length: 15 in Gun Rail: M-LOK Gun Make: AR Platform Weight: 6 lb Flutes: No Package Contents: Bear Creek Arsenal BC-15 6mm ARC 18in Upper Receiver What firearm models does the manufacturer say Bear Creek Arsenal BC-15 6mm ARC 18in Upper Receiver is compatible with? The manufacturer says that Bear Creek Arsenal BC-15 6mm ARC 18in Upper Receiver is compatible with AR-15Bear Creek Arsenal UAFC40346MMAMHB181815FDESR: BC-15 6mm ARC 18in Upper Receiver Heavy Mid-Length 1-8 5/8x24 Flash Hider Parkerized FDE