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Krytac Trident M4 / LMG Rotary Hopup Unit for M4 / M16 Series Airsoft AEG Rifles

ID: 55920 (HU-KTAEG-018-P001)
Krytac / KRISS USA55920
4.3 stars, based on 3 reviews
Krytac Trident M4 / LMG Rotary Hopup Unit for M4 / M16 Series Airsoft AEG Rifles
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MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.
The KRYTAC Rotary Hop Up Assembly is constructed of high quality polymer and features many user friendly updates to traditional M4 hop up systems. The rotary adjustment wheel is precise and definitive, each click position is numbered and the hop up offers a tactile and audible feedback when adjusting. The lever arm can be lifted upwards to give access to the hop up nub chamber for easy adjusting or cleaning. Also, the hop up nub is retained by the arm to prevent loss when changing barrels or hop up buckings.


  • High quality reinforced polymer construction
  • Rotary style adjustment knob
  • Tactile feedback adjustment
  • Easy maintenance
  • Factory direct OEM replacement part
Compatibility: For Krytac and other compatible M4 / M16 Series Airsoft AEG Rifles
Material: Polymer

Manufacturer: Krytac

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About Krytac / KRISS USA

KRYTAC, established in Southern California in 2013, is a cutting-edge product development team of the Switzerland-based firearms manufacturer, KRISS Group.

The KRYTAC team is comprised of highly experienced professionals who have come together for one common goal, to elevate your expectation of performance, value, and service.

3 Customer Reviews

(Write a review)

by Jeremy B. on 12/03/2017
"This product is great, i was using it to replace the crappy cheap hop up the previous owner of my Krytac put on it. my one problem with it is the fact that it came with a O ring, I'm not sure if it was for the barrel or what but i could not find any mentions of it anywhere online or on the website page.
by Luke S. on 05/05/2016
"Bought this when my when my standard hopup that came with my echo 1 genesis m-4 broke. I hoped it fit and it did.

Easy to install
Adjusts to a single point not in between numbers
Feeds well in semi auto
comes with everything you need
Skips a bb every other tome in full auto.
Kind of hard to turn
Overall it is great and perfect for that player who plays in and outdoor feilds
by Peter P. on 03/04/2016
"This fit perfectly onto my G&G CM16 raider and King Arms M16A3. I'm giving this hopup a 4 star due to there not being a barrel clamp included with my order, and now My barrel is loose and wobbly due to a makeshift one. It clicks, it works like the real deal I bought the Krytac Hopup bucking as well and recommend it with this unit. Works good for guns that shoot ~400-410 FPS

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