More of a rebranded and pimped product from G&G...."The Airsoft GI Combat Machine M4 RIS is everything you could want from your affordable M4 and more. The Combat Machine is a lightweight plastic body gun with good quality metal internal parts. Combat Machine is dedicated to providing reliable and affordable guns to their customers, combine that with the addition of the RIS that the Airsoft GI technicians have put on and you've got a reliable AEG with a lot of upgrade potential.

Specifications:

• Manufacturer: Combat Machine
• Gearbox Type: Type 2
• Accuracy: 120 ft
• Muzzle Velocity: 320-330FPS
• Magazine Capacity: 450 rounds
• Package Includes: gun, high capacity magazine, PEQ Box, cleaning rod, and manual
  

Features:

• New Redesigned Gearbox
• Plastic Receiver
• 450 Round Magazine"