Mach Sakai checks the Tokyo Marui USP GBB pistol is a meticulously designed model that offers both single and double action, with a left-side control lever for safety and decoking. It has a large-diameter cylinder for reliable gas firing and blowback, providing a powerful blowback effect. The model also has a safety and decoking system that allows the hammer to be locked when fully cocked, preventing accidental discharge. It replicates the real-life operation and includes features such as a metal extractor, undermount rail for flashlight installation, ambi-type magazine catch lever, and a durable die-cast magazine. Made of ABS, it has a magazine capacity of 25+1 rounds, a length of 195mm, a barrel length of 95mm, and weighs 720g. Operating on a gas blowback system, it has a semi-auto fire mode, adjustable hop-up, and a muzzle velocity of approximately 1J with 0.2bb/134a. The package includes the gun, magazine, and manuals.