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GBL Airsoft "The Captain" Metal Hop-up Unit for GHK M4 Series Airsoft Gas Blowback Rifle

3.5 stars, based on 6 reviews
GBL Airsoft The Captain Metal Hop-up Unit for GHK M4 Series  Airsoft Gas Blowback Rifle
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  • Aluminum alloy construction
  • Precision CNC machined
  • Vivid anodized finish
  • Improves accuracy and range. Provides enhanced performance over stock configuration
  • Includes bucking
Compatibility: GHK M4 series gas blowback Airsoft rifles
Material: Aluminum alloy, rubber

Manufacturer: GBL

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.

6 Customer Reviews

(Write a review)

by Donavan S. on 04/07/2021
"Captain America hop up is the best hop up I ever seen in my life im a fan boy of GHK and GBL I recommend this upgrade to everyone!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
by David Y. on 11/14/2018
by Peter R. on 04/09/2018
"I bought this because I needed a new hop up... GHK STANAG mag feed lip broke, I double fed, and burst my plastic hop up... but MAN IS THIS AMAZING. I'm actually glad I had a reason to upgrade! The metal is extremely well built. When I'm double feeding, it just breaks the BB and I walk off to clean it off real quick. The bucking didn't want to co-operate to well upon insertion to the unit itself. Use a lot of lube and just don't give up. VERY SOLID PRODUCT, all the GHK players on my field use this product, or the TNT hop up system, the two option are simply the best for your GHK M4. Don't forget to pick up an AR wrench or you will never be able to change this yourself, otherwise get a tech to change it.

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