We get to see more and more videos of HPA-powered airsoft pistols in the USA where previously these custom airsoft guns were seen mainly in Japan. TopHat Runner Airsoft shows us his custom work HPA P226 "Alpine" which he used the KJ Works P226 (KP-01) Gas Blowback Pistol as the base gun. See the list below the upgrades he used and watch the video guide in building this custom pistol.

Upgrades:

• HPA rig (external air tank and line).
• M16 Vietnam mag literally electrical tapped to my P226's mag.
• Matrix Reinforced Threaded Barrel.
• A.P.S. UAR Muzzle Flash Hider.
• ACTION 6.03 CU Inner Barrel for Marui Hi-Capa GBB (178mm).
• A+ Ramjet magazine valve.
• Nineball Gas Rubber Packing (magazine buffer rubber).
• Shooter's Design POM Air Nozzle.
• PDI Winter Piston Head.
• UAC Ultra Lightweight Blowback Housing.
• ACTION Aluminum Cylinder Bulb (high flow valve).
• That stronger cylinder spring that comes with the Nineball Dyna Piston Head.
• Modify VSR10 Hop Up Bucking (I'm still testing out various buckings though).
• ACTION Aluminum Recoil Spring Guide Set (LW) (with the stock recoil spring).
• Uses the stock hammer and recoil springs.