Bushmaster XM15 A2 Complete Upper Assembly - Black | 5.56NATO | 20" Barrel | A2 Handguard w/ Carry Handle | A2 Flash Hider 00-40024-BLK

XM15®A2 20" CARRY HANDLE COMPLETE UPPER ASSEMBLY. Here's the final pieces you'll need to complete that Retro / M16 lookalike rifle youve been working on. We've made it easy with our complete upper XM15®A2 upper assembly that includes all the authentic pieces you'll need to finish that retro AR15 rifle. Featuring an A2 Carry Handle, 20" Chrome Lined Barrel, Chrome Lined Bolt Carrier Group and that authentic A2 front sight base, you're two pins away from finishing that retro rifle you've been dreaming about. Best of all, you'll have the Bushmaster® quality built-in too. Features & SpecificationsCaliber: 5.56 NATO / .223 REMBarrel Length: 20"Barrel Material: 4150 CMVBarrel Finish: Phosphate Chrome LinedBarrel Thread Pitch: 1/2 x 28Twist Rate: 1:7Weigh: 4.91 LBOverall Length: 28 1/2"Gas System: Rifle LengthUpper Receiver Material: 7075 Aluminum AlloyUpper Receiver: A2Bolt Carrier Group Finish: Chrome Lined PhosphateBolt: MPI & HPT TestedHandguard: A2 Heat ShieldsMuzzle Device: A2 Flash HiderFront Sight: NON F-Marked A2 FSBRear Sight: 8/3 Fixed Carry HandleProudly Made In: U.S.A. Manufacturer Part Number: 00-40024-BLK Manufacturer Part Number: 00-40024-BLK