Introducing the ALL NEW Greyforge Series GF9 from CQT Weapon Systems. engineered, manufactured and built in the U.S.A. The billet lower and upper receivers exceed all military specifications making the GF9 lightweight and durable. The heart of the GF9 is the CQTWS barrel. Each CQTWS barrel is 100% machined in-house in our barrel cell division from 4150. Available in: 16" & 6", barrels lengths. Barrels are finished off with one of CQT Weapon Systems muzzle devices. The CQTWS aluminum M-LOK handguard is topped off with a set of Defiance flip up front and rear sights. Your shoulder will love the Mission First Minimalist stock. Uses standard Glock™ Magazines.