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ProWin CNC Hopup Chamber for M4/M16 Series Airsoft AEG Rifles

ID: 40058 (HU-PW-M4)
4.2 stars, based on 28 reviews
ProWin CNC Hopup Chamber 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.
Compatibility: For Matrix, Tokyo Marui and other compatible M4 / M16 Series Airsoft AEG Rifles
Material: CNC Aluminum

Manufacturer: ProWin

  • High performance M4 hopup unit.
  • CNC out of aircraft grade aluminum.
  • Superb air seal.
  • Superb durability.
  • Anodized surface treatment.
  • 28 Customer Reviews

    (Write a review)

    by Bryce P. on 04/07/2017
    "Do I recommend this? Absolutely, but there are pros and cons as with anything

    -Good quality construction, sturdy
    -easy to assemble
    -Works very well when paired with a good bucking
    -looks nice
    -Hop Up is easily adjusted while installed

    -Does not seal well to the barrel, now this can be fixed with the O-Ring Mod and/or teflon tape. I used both, now it is flawless.
    -No instructions, may be a deal breaker for some people

    Overall I highly recommend it, especially for $30 over an OEM Plastic replacement in the event your hop up is broken!
    by David B. on 03/19/2017
    "I bought this along with the purple promy to flat hop my CM16 Raider. When flat hopping this I would highly recommend using an eraser for the nub rather than wasting $20 on a firefly. Best hop up on the market for this price.
    by Thomas C. on 02/04/2017
    "I installed this unit onto my G&G CM16 due to intermittent feeding issues and the want to upgrade the hop to a metal unit. I am very well pleased with this hop up and the performance it added to my weapon. Haven't had any feeding issues since the installation 4 months ago. The Hop Up is now installed in a Ares Amoeba and performs just as well. I use a G&G bucking and a 6.03 tight-bore barrel and have good performance. The quality of the product is great and have not run into any fitment issues. I hope that my review is helpful and I would recommend this product.

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