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$ 910.61
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2,630 g


870.0 mm


50 rds


390.0 fps

Power Source

Top Gas



Shooting Mode

Semi, Full Auto

All New for 2011 Super Ver. and exclusively distributed worldwide by RedWolf Airsoft.

With this version, INOKATSU has improved upon their previous 2009 version M4 GBB designs with an improved bolt for greater durability and more stable performance. The upper and lower receivers are also more refined with an improved fit and finish (tighter seam lines between the upper and lower receiver). This is a direct improvement based on feedback and discussion between customers, Redwolf and Inokatsu. All improvement made are in an effort to maintain Inokatsus premium dominance over other GBB rifles for realism, quality, performance and durability.

The Inokatsu M4 blowback mechanism to designed to deliver an unparalleled gas blowback experience that generates good usable power, while providing customers with a choice of light or heavy recoil through the use of a removal weight in the bolt!

This is a first in the world if Airsoft and is now available in this 2011 SUPER version, exclusively available at RedWolf Airsoft!

The bodywork as usual is top notch, and with their 2011 version, and as before it has fully licensed forged aluminum receiver with licensed Colt markings. Manufacturing process and coating of the receiver is the same as the real steel version (forged + CNC), making the Inokatsu M4 one of the most realistic looking airsoft guns available today. We showed the Inokatsu M4 to a group of Blackwater Operators in the USA, and they could not see the difference between the Inokatsu M4 and a real M4!

The color and finishing is spot on. Needless to say, each and every bit of its licensed body work had been expertly engraved into the body, the M4 SOPMOD of course has its own unique serial code. Realism even shows on the way the selector lever operates, such as not being able to flip the switch from semi / full auto to SAFE position unless the gun is cocked. This is the same as on the real M4. In the spirit of this being a training weapon, the barrel thread is the same thread and measurement as the REAL M4 for realism, but Inokatsu includes an adapter thread if you want to screw on your 14mm CCW (negative thread) silencer or other aftermarket airsoft flash hiders.

The 2011 Version of the INOKATSU M4A1 SOPMOD is extremely well made and put together with pinpoint precision, making the INOKATSU extremely robust. The entire gun is SOLID with no wobbles and shakes. It feels like a real gun when you pick it up. Featuring a weight adjustable bolt carrier, the M4 kicks like a 9mm real steel weapon every time you pull the trigger with the weight installed (kick is just as strong as previous version Inokatsu M4). On the semi-automatic firing mode, the INOKATSU M4 SOPMOD is able to completely fire off all 50rds from its magazine. But if you are a skirmisher and want a faster rate of fire and don't care about the recoil as much, remove the weight from the bolt and the M4 can easily finish 50 rounds in full auto. To obtain this performance while maintaining a VERY strong recoil kick, Inokatsu had to dial down the power from the originally planned 460fps to approximately 400fps which is still more than enough. If power is important to you, you can still increase the FPS by installing a precision barrel.

If you leave the lead weight in the bolt and run it at full auto, you may get less than 50 rounds on one charge of gas but you'll enjoy a much stronger recoil for a more memorable shooting experience (rate of fire will be lower though). Regardless, each and every shot with the INOKATSU M4A1 SOPMOD would more than definitely put a smile on your face! The sound is loud and if you put your face against the gun for automatic fire, your ears will ring! If you intend to skirmish with the M4, then we recommend you remove the lead weight on the rear to lighten up the bolt for faster rate of fire and more efficient use of gas.


  • 4x RIS Rail Covers (Black)
  • 1x 14mm CCW thread adapter
  • 1x Screw-On Bolt Add-On Weight for added recoil
  •  (may come already screwed in to bolt or packaged separately in a bag)


    Total Length (Extended): 870mm
    Total Length (Retracted): 780mm

  • This Product was added to our catalog on Tuesday, 08. March 2011.

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