Anderson 7.5″ Pistol Upper, .300 Blackout, 7″ M-LOK Handguard, with BCG and CH

This Anderson Manufacturing complete upper receiver has the following specs: COUNTRY OF MANUFACTURE: United StatesUPPER RECEIVER MATERIAL: Forged 7075 T6 AluminumRECEIVER FINISH: Type 3 Hard Anodized, BlackBOLT CARRIER FINISH: NitrideBOLT CARRIER MATERIAL: 8620 SteelBOLT FINISH: NitrideBOLT MATERIA:L 9310 SteelBARREL MATERIAL: 4150 Chrome Moly VanadiumBARREL LENGTH: 7.5 InchBARREL FINISH: NitrideBARREL CONTOUR: Government ProfileTWIST RATE: 1:8GAS SYSTEM LENGTH: Pistol LengthGAS SYSTEM TYPE: Low ProfileGAS BLOCK DIAMETER: .750 inchCHARGING HANDLE: IncludedBOLT CARRIER GROUP: Standard M16 ProfileHANDGUARD: M-LokHAND GUARD LENGTH: 6.75 inchTHREAD PATTERN: 5/8 – 24MUZZLE DEVICE: Knight Stalker Flash HiderCOMPATIBILITY: Standard Multi-cal Lower Receivers No FFL required, this can ship directly to you.