Another custom work from eHobby Asia which you can get for US$480.00... "The EAC SAI Arms HK45 GBB Pistol is base on the Umarex H&K HK45 GBB Pistol. It has a 29-round loading capacity magazine, innovative Hop-Up Thumb Dial located inside the gun (can be seem after you disassemble the slide). It has a very loud & crispy Blow Back sound with Hi-Kick Recoil and Extreme high accuracy among all other competitor

Features:

• Ambidextrous Slide Catch Lever and Magazine Release
• Engraved "HK45" Marking on Textured grip
• Equipped with Lower rail for Flashlight or Laser Sight attachment
• Solid Nylon Pistol Frame

Custom Upgrade Works:

• Airsoft Surgeon SAI Arms HK45 Slide Set for Umarex HK45 GBB (AS-HCMS-088)
  • Laser engraved "Salient Arms International" marking on the slide
  • Include 115mm Outer Barrel (Copper) in the package (The gold color will still be maintained even it's scratched by the slide.)

• Hard Pistol Case (315mm x 210mm x 75mm)
• Very loud & crispy Blow Back Recoil Sound
• Enjoy the blow back with magazine feeding stopper installed
• Disassemble procedure is as the same as the real steel
• Recommend to take HFC134a gas for better durability"