The RA-Tech Custom Gas Blowback M4 RAS is now at WGC Shop where you can order it for US$650.00. Most of its internal parts are fitted with RA-Tech upgrade parts including the steel bolt carrier with the famous NPAS. On the externals, it has steel barrel, flash hider and front sight with receiver being made of forged aluminum. This also comes with RA-Tech's own M4 gas magazine

Specifications:

• Magazine Capacity: 20 ( 6mm )
• Length: 782-864mm
• Barrel Length: /mm
• Weight: 2905g
• System: Gas Blowback, Semi Auto / Burst, Hop-Up
• Muzzle Velocity: 280-440FPS ( 0.2g BB / Top Gas / Adjustable Valve )
• Package Includes: Gun, Magazine, NPAS Tool, Bolt Carrier Weight, Muzzle Thread adapter, Rail Cover x4

Custom Work Done:

• RA-Tech Complete Hop Up Chamber
• RA-Tech Inner Barrel
• RA-Tech Steel Bolt Carrier w/ NPAS
• RA-Tech 3 Round Burst Kit
• RA-Tech M4 Magazine
• Steel Outer Barrel, Flash Hider, Front Sight
• Forged aluminum receiver