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GHK M4 V2 RIS Full Metal Airsoft Gas Blowback GBB Rifle (Length: 12.5")

ID: 78562 (GR-GHk-M4-125)
GHK M4 12.5" GBB (V2)
GHK859188785625GHK M4 12.5" GBB (V2)78562
4.0 stars, based on 1 reviews
GHK M4 V2 RIS Full Metal Airsoft Gas Blowback GBB Rifle (Length: 12.5)
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Optic not included
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This item is currently Sold Out

Canada Export CompliantCanadaExport Compliant
This gun has a muzzle velocity rating (FPS) between 366 and 500, and is compliant for export to Canada.
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Length Options:


  • Full metal upper and lower receiver
  • Metal barrel assembly with fixed triangular front sight
  • Metal RIS handguard allows for easy addition of any 20mm accessories
  • Flat top receiver makes mounting optics or other accessories easy
  • Adjustable LE style stock and polymer pistol grip
  • Negative pressure blowback system
  • Realistic fire controls

FPS: 400

Color: Black

Length:725mm-810mm, Adjustable
Weight: 3018 g
Inner Barrel: ~285mm
Magazine Capacity: 40rd GHK M4 Magazine
Thread Direction: 14mm Negative
Gas Type: Green Gas
Fire Modes: Semi / Full-Auto, Safety
Package Includes: Gun, Magazine, Manual
Hopup: Yes, Adjustable

Manufacturer: GHK

About GHK

Established in Taiwan in 2008, GHK began as the leading manufacturer of AK style gas blowback rifles. In the intervening years GHK has grown to become one of the most highly regarded GBBR manufacturers in the industry.

1 Customer Review

(Write a review)

by Dylan S. on 11/27/2018
"Have to be completely honest, as much as I wanted to be totally satisfied with the GHK out of the box I definitely wasn't. I had a major issue of the bolt not locking back out of the box, but this was fixed (i think) by clipping some coils off of the bolt catch lever spring and unscrewing the buffer tube 1 turn.

OTHER than this issue the replica quality and finish was amazing. Feels like an excellent replica, very sturdy and has a great recoil impulse using CO2 magazines. Havn't had a chance to skirmish with it yet, but have done alot of plinking. Pretty accurate and great range out of the box. Would recommend a stiffer buffer spring.

Next issue I'm running into is that I'm going to have to re-thread the upper receiver to accept AEG spec rails. I'm going to do this using the madbull upper receiver modification tool which is on the way from evike.

So to be completely honest... after spending $520 I expected this gun to be perfection out of the box and me having to put no work into it whatsoever.... but not the case... Hopefully after getting these kinks worked out everything will be running smoothly. I'm sure my first skirmish with it will put a big ol' smile on my face.

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