Contact Us Tel:(626) 286-0360 Store Locations
Phone Support Hours M-F 7am-6pm PST
Browse by Type or Category
Check out the new discounts on the 2020 Deals! Save more with FREE SHIPPING for orders over $99.

GHK Colt Licensed M4A1 RIS Gas Blowback Airsoft Rifle by Cybergun (Length: 14.5")

ID: 78541 (GR-GR-GHK-M4-14.5-COLT)
5.0 stars, based on 1 reviews
GHK Colt Licensed M4A1 RIS Gas Blowback Airsoft Rifle by Cybergun (Length: 14.5)
Hover or touch above to zoom
Optic not included
Product image 1 Product image 2 Product image 3 Product image 4


Canada Export CompliantCanadaExport Compliant
This gun has a muzzle velocity rating (FPS) between 366 and 500, and is compliant for export to Canada.
Free ShippingNo Coupon Required
Free shipping within lower 48 US states, no coupon code needed!


  • Full metal upper and lower receiver with stamped Colt trademarks
  • 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
  • CNC bolt carrier group with negative pressure blowback system. CNC process with heat treatment. Harder material and smooth performance
  • Realistic fire controls with improved bolt locking lever
  • Lighter weight magazine design reduces weight by 35% compared to the old 1st generation magazines

Manufacturer: GHK / Licensed by Colt

FPS: 400


Length: 780mm - 840mm, Adjustable
Weight: 2890
Inner Barrel: ~370mm
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

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 Quan V. on 09/27/2019
"Well, there's probably not much more I can tell you about GHK M4s since there have been many established reviews. However this very specific batch as of 2019 is different. You can easily tell if your serial number starts with an W (2019 batch) or K (2018 batch)


– Improved hard anodized matte finish, as oppose to the horrible thick shiny black coat of the 2018 batch. This new finish is thinner, but stronger and scratch resistant, simply spot on. Very nice looking indeed.
– Improved bolt catch and stronger metal insert on the bolt to ensure lock back.
– Insane gas efficiency, 1 fill will give you 3 - 4 mags.
– Comes with original bird cage flashhider and Colt engraved magazine base plate. Authentic!
– Markings are second to none, I especially love the stamped markings on the barrel. Well done.

Left to be desired:

– Quite weak spring, you'll notice when you pull the charging handle back and let it slam forward. But gladly, the gun recoil is not weak. I guess they did this to prolong the life of the parts. Aftermarket springs and heavier bolts are everywhere, so that's fine.
– Classic LE stock wobble, even the real steel has this issue, so no biggie. Easy fix with some tape around the inside. I guess it's authentic...
– Do yourself a favor and swap out for a better, nicer looking rear sight.
– Mine came with a misaligned rail... quite disappointing for a $550 gun. Caused by a chip. I'm asking for a replacement part.

Questions, Answers and Comments

Discuss about GHK Colt Licensed M4A1 RIS Gas Blowback Airsoft Rifle by Cybergun (Length: 14.5) with your friends and fellow shoppers!

Comment or answer questions for a chance to win awesome prizes. Details can be found on the Facebook page. Remember to check "Also post on Facebook" when commenting to qualify for the giveaways!

Have an urgent question about this item? We monitor these comments daily, but it may be faster to email us directly or call us at (626) 286-0360. Our resident experts are standing by to answer your questions!

California Proposition 65 Warning: Cancer and Reproductive Harm -

Customers Also Purchased

Search tags for related products