The Viper Tech Mk 18 Mod O Gas Blowback Steel Version is now in stock at eHobby Asia and you can get this at a premium price of US$765.00... "VIPER TECH is the first airsoft company ever, to implement forging process to manufacture AR-15 series replicas. As SOLID & ROBUST gun as a real steel and it is a 1/1 Scale High Performance Assembled Gas Powered Airsoft GBB Rifle.

New Upgrade Parts:

• With Adjustable Hop-up with Barrel Extension Assembly - New design to prevent double feeding and jamming

Features:

• High Quality Metal Receiver With Steel Receiver Parts
• LMT SOPMOD Style Buttstock with QD Sling Socket and Rubber Stock Pad
• CNC KAC M4 Style RAS Rail System Handguard (Full Length: 185mm)
• CNC Steel Made 9.5inch One-Piece Outer Barrel
• 6.04mm Inner Barrel (AEG Type Compatible)
• Adjustable One-Piece Design Hop-Up Chamber

New Design 2011 Version Upgrade internal Parts:

• GFPA`11 (VIPER TECH 2011 Version CNC Steel Gas Firing Pin Assembly)
• 2011 version Replica Steel Hammer
• 2011 version Full Stroke Hammer Spring
• 2011 version CNC Hammer Bearing
• Hammer Pin
• Hammer Pin Fix Coil Spring
• 2011 version Bolt Catch

• Include 30 Rounds Gas Operated Steel Housing Magazine (We recommend to use with ProWin / WA / G&P Gas Operated Magazine 'SOLD SEPARATELY' to operate the best performance of this lovely baby)
• You can even take RED GAS on it to enjoy the True Recoil (VIPER TECH suggested no more than 12kg power gas)
• Real Measurement 14mm Clockwise barrel extension tube
• Sling mount can be installed with single, 2- or 3- point tactical sling"