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GHK M4 Keymod GBBR MOD2 14.5" Airsoft Rifle

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GHK are a high-end Taiwanese manufacturer of GBB rifles. The quality of their products is outstanding. If Real Sword were to make gas rifles, these would the very ones!

An unbelievable recoil from an ingeniously designed gas engine system, coupled with an unsurpassed gas efficiency make this a serious contender. As if that wasn't enough, the surface treatment makes this gun both rust and scratch resistant (I said resistant, not proof before someone tries! ;) )

Note: ONLY for use with 'hard' BBs! Do NOT use Bio or Blaster BBs as you can damage your hop unit!


With a steel bolt, barrel, trigger group, aluminum receiver and a GHK made Keymod rail system, the material usage in the construction of this GBBR is entirely accurate to the weapon it aims to replicate. Steel parts exhibit a lighter grey than the treated aluminum and give the GHK Keymod MOD1 excellent heft . 

Due to the steel bolt and GHK's modified negative pressure floating valve blowback system, when coupled with GHK V2 GBBR M4 magazines, the operation is amazingly reliable while performance and power consistency are excellent. If you've fired a GHK G5 and liked the kick on that, the kick on this GBBR is comparable, even given the increased weight of the body due to a heavier steel bolt that is still snappy and responsive on lower powered gases.

The Hop-Up on this replica is easily accessible. The dial adjust is accurate and stiff enough to hold its adjustment even given the recoil of the platform.




  • MOD2 KeyMod 14.5'' Rail
  • 6.03 Tightbore Barrel
  • Three prong Flash Hider capable of accepting QD Type Suppressors
  • US Navy Seal Engraved Markings
  • 4 Position Stock
  • Upgraded Hop-Unit
  • Steel Bolt
  • Steel Internals

CODE M4 Keymod MOD1
Approx FPS (+/- 5%) 370+
Approx Range 60m+
Barrel Length 375mm
Magazine Capacity 40rds
Fire Selector Single Shot / Full Auto
Blowback Yes
Hop Up Adjustable
Powered By Gas (Magazine)
Gas Compatibility Green Gas
Manufacturer GHK
Weight (Kg) 5.0000
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Important Information


All images, product contents and specifications listed are based on checks performed when a product is first listed and may differ due to changes over time made by the manufacturer. This includes package contents in regards to any 'extras' provided e.g. Sample BBs.

Items used in images to promote the main item (Holsters, Camo, etc) are not supplied unless listed in the Specification tab under 'Extras'. This includes attached rails, grips, scopes, suppressors etc.

Chinese supplied Batteries and Chargers are warrantied to be not DOA (Dead on Arrival) only. We always recommend swapping out to a better quality Battery and Charger at the earliest opportunity.

Custom Painted products (Two-Tone) are non-refundable as these are painted to order. 

Unless otherwise stated, all products are sold singly.



Any figures used are based on tests performed on the products when they are first listed. These can vary due to changes by the manufacturer, gas pressure, gas used and a number of other factors. All figures should be treated as an approximate guide and used for reference only. 

All listed FPS are +/- 5% due to differences from rifle to rifle. If you require a guaranteed FPS, please add an upgrade/downgrade option on to your product (this may cost extra).

No airsoft AEG is warrantied for use with an 11.1v LiPo or higher voltage battery at UK velocities (373fps or lower) unless specifically recommended on the product itself. Use of higher voltage batteries can cause failures and will negate any warranty implied or otherwise.



We cannot offer an exchange on pyrotechnic devices due to device failure. We are unable to guarantee that the pyrotechnic device has been stored in a moisture free environment or used correctly in accordance with the manufacturers guidelines.

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  1.    This itemGHK M4 Keymod GBBR MOD2 14.5" Airsoft Rifle
  2.    GHK G5 38rd Green Gas Magazine (TAN)

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