A full SRS HPA kit This is a very easy to install kit that can transform your SRS into a HPA monster. HPA means that there is next to zero resistance when cycling the bolt as there is no spring to compress. The Wolverine Bolt M engine is entirely mechanical meaning no batteries to source and keep charged. Details of the kit are below: Wolverine Bolt M Engine Simply perfect performance Built on the legacy of the original BOLT system, the BOLT M delivers top-level performance. Fully mechanical The new fully mechanical design offers a more convenient and reliable battery-free operation. Stay on target Smooth, spring free action makes it easy to keep sights on target, improving speed accuracy of follow-up shots! Easy installation Quick-change between spring and HPA provided by an innovative air attachment system Wolverine Storm Category 5 Regulator The STORM Category 5 is the next evolution of the STORM regulator, the original dedicated airsoft regulator. The Category 5 is optimized for reliably fast, adaptable, and consistent performance across the entire pressure range needed for HPA products. Get the most out of your Wolverine Airsoft HPA system! This regulator has become one of the most popular regulators currently on the market. Its compact design with simple, maintenance friendly internals and great performance have made it the go to choice for many. Armotech Superlight Tank The Dye Core air tank is a composite bottle with a stainless steel core. Still it is light, small and Pi approved. The Volume of this bottle is 0.5 liters (30,5ci) with 4500 psi (300 bar) It comes without a regulator. Technical details • Weight: 0,5 kg • Pressure: 300 bar • Length: 160 mm • Diameter: 90 mm • Lifetime: 15 years (reinspection after 5 years) The Amped Line was developed during the rise in popularity of High Pressure Air (HPA) Airsoft systems in the United States. Unlike some other lines in the market, Amped Lines use a durable wide bore line protected with high-strength nylon sheathing to prevent general wear during games. The biggest benefit of the wide bore line is that it allows for more air passage than a traditional 6mm macro line. This helps improve refresh rate and helps to drive air-hungry systems like Daytona Guns or GBB guns that have been HPA tapped. Amped Line's are hand-made and tested in Pittsburgh, Pennsylvania in the United States of America. Best of all, their lines carry a limited lifetime warranty against manufacturer’s defects.