JP Enterprises JP-5 9mm Dual-Charge Pinned 14.5 Upper The JP Enterprises JP-5 Dual-Charge 9mm complete upper is a roller-delayed pistol-caliber assembly, available now at Battlehawk Armory in matte black. It is built on a dual-charge billet upper with a Radian Raptor-LT and a low-profile JP-5 side-charge handle. A 14.5-inch SuperMatch lightweight barrel with a 1:10" twist and black Teflon finish is threaded 1/2x28, then fitted with a black 3-port JP compensator that is pinned and welded. A long black thermal dissipator (.650" barrel journal, 8.375" long) sits under a 12.5-inch knurled Mk III Rapid Configuration handguard with a matte-black hard-coat anodized finish. Roller-delay internals include a QPQ 416 stainless JP-5 carrier, a 75-degree locking piece, a QPQ roller-delay bolt, and a JP-5 firing pin. That combination is meant to run softer than a blowback 9mm upper of the same length. This is a complete upper only-no lower, stock, or magazine. It is ready to pair with a JP-5 9mm lower and Glock-pattern magazines. Add the JP Enterprises JP-5 Dual-Charge 14.5-inch pinned-and-welded 9mm upper to your collection at Battlehawk Armory today. Specifications Manufacturer: JP Enterprises Model: JP-5 Dual-Charge Complete Upper Caliber: 9mm Upper Finish: Matte Black Barrel Length: 14.5" SuperMatch Lightweight Contour Twist Rate: 1:10" Barrel Finish: Black Teflon Thread Pitch: 1/2x28 Muzzle Device: JP 3-Port 9mm Compensator, Black, Pinned and Welded Operating System: Roller Delay Upper: JP-5 Dual-Charge Billet Charging Handles: Radian Raptor-LT and JP-5 Low-Profile Side Charge Handguard: Mk III Rapid Configuration, 12.5" OAL, Knurled Matte Black Thermal Dissipator: Long, Black, .650" x 8.375" Bolt Carrier: JP-5 9mm, 416 Stainless QPQ Locking Piece: 75-Degree Bolt: JP-5 9mm Roller Delay, QPQ Configuration: Complete Upper Assembly This Upper's Build Sheet: JP5UA-PSC: JP5-PSC Complete Upper Assembly OPToJP5UA-PSC: JP-5 Pistol Caliber Dual-Charge Billet Upper Assembly, Matte Black Finish oRAD-RAPTOR-JP5: Radian Raptor-LT Over-Molded Ambidextrous Charging Handle for Use with the JP-5 oJP5-SCHA-LP: Side Charge Handle, JP5 Low Profile oJPSM928JP5-14.5L10W-BT: Supermatch Barrel, JP-5 9mm Chamber, 14.5" Light Weight Contour, 1:10" Twist, Black Teflon, 1/2"x28 TPI oJPTRE3-928B: 3-Port 9mm Compensator 1/2"x28 TPI, .750 OD, .406 Exit, Black PIN COMP: Modify Barrel and Brake for Pinned Comp oJPTD650L BLK: Long Thermal Dissipator, Black, .650 BBL 8.375" oJPHG3-1M-RC: Mk III, Free-Floating Rapid Configuration Hand Guard, Rifle Length (!2.5" OAL), Knurled Matte Black Hard Coat Anodized oJPBC-2-JP5: JP-5 9mm Bolt Carrier, 415 Stainless with QPQ oJPBCJP5-LOCKPC-75: JP-5 Locking Piece, 75 Degree oJPEB-JP5-9: JP-5 9mm Roller Delay Bolt Assembly, QPQ Finish oFPJP5: Firing Pin for JP-5 9mm