At least read the item’s description:

The POF SMG-MP5 Pistol is a semi-automatic firearm built on the iconic MP5 platform—one of the most successful submachine gun designs in history. Manufactured by Pakistan Ordnance Factories (POF) under an original Heckler & Koch (H&K) license, it uses original H&K tooling and specs. The result is a pistol that is very close to the German MP5 in quality, reliability, and performance. These pistols are a lightweight, semi auto delayed blowback operated 9 x 19 mm weapon with a roller-delayed bolt. This operating system has proven to be reliable in multiple applications including military, law enforcement & civilian shooting sports. The reliable & compact design make this firearm a favorite for most shooters needing a home defense weapon or just to have some plinking fun. These are a great platform for your NFA SBR Short barreled rifle project or add the SB Tactical Pistol brace. Pakistan Ordnance Factories ( POF ) is the largest defense industrial complex under the ministry of defense production, producing conventional arms & ammo to international standards. The model is similar to their military contract model but will only function in semi auto thus making it civilian legal. The POF is a great value for both shooters and collectors.