GI Sportz 68/4500 HPA Carbon Fiber Compressed Air Tank - Red Factory Spare Parts and this level of quality

and this level of quality shows in their gas guns

As with all TechT products

This is the larger 2 oz (57g) tube

FS Mock Silencer Barrel Tip

GI Sportz 68/4500 HPA Carbon Fiber Compressed Air Tank - Red Factory Spare Parts and this level of qualityThese budget friendly Air systems are lightweight and come with a dependable and efficient regulator. With a five year retest cycle, these tanks will operate for many years of quality performance. Features: Lightweight DOT & TC certified carbon fiber cylinders 68 cubic inch sized cylinder Paintball Industry standard 4500 PSI fill capacity with an 800 PSI output pressure Reliable Regulator providing smooth airflow combined with stable output pressure