New type of popular HPA adapter for GBB magazines. This is a self-closing (one-way) variant, once the hose is disconnected the pressure will remain in the reservoir. A few more shots can be fired at the residual pressure, depending on the type of gun and magazine. Another advantage is the significantly more convenient disconnection of the hose and thus reloading without loud pressure blowing out of the magazine.

Made of high quality stainless steel, black finish.

Weight: 20g