What's in the Box PTR Industries 9CTMP 9mm Short-Barreled Firearm (1) 50-Round Drum Magazine Cable Lock Owner's Manual The PTR 9CTMP SBR is the ultimate modern evolution of the iconic H&K MP5, delivering legendary roller-delayed reliability in a factory short-barreled rifle built for today's hardest use. Chambered in 9mm with an 8.86" nitride-treated, 3-lug barrel threaded 1/2x28, it's suppressor-ready right out of the box and runs whisper-quiet with subsonic ammo. Built on classic MP5-pattern architecture, it utilizes PTR's roller-delayed blowback operating system to deliver smooth recoil characteristics and consistent cycling in a compact pistol format. This exceptional platform operates using PTR's proven roller-delayed blowback system, providing a smooth recoil impulse and consistent cycling. A nitride heat-treated, tungsten dead-blow weighted full-auto profile bolt carrier enhances durability and supports sustained operation. The semi-automatic action is host-ready for use with NFA-registered auto sear packs where legally applicable. The overall finish consists of black powder coating over Parkerizing for corrosion resistance and long-term wear protection. Firearm Features Magpul MPSL Handguard Magpul MPSL Lower Receiver Roller-Delayed Blowback Operation Optic ready with a Welded Scope Mount Paddle & Push Button Magazine Release SBR model with Magpul MPSL Retractable Stock 8.86" 3-Lug with 1/2"x28 tpi for use with suppressor and muzzle devices Firearm Specifications Manufacturer: PTR Industries Model: 9CTMP Caliber: 9mm Barrel Length: 8.86" Threaded Finish: Black Magazine Capacity: 50 Rounds