ProWin M4 Chamber for M4 | AEG Hop Up Units Reviews

4.8 Rating 21 Reviews

ProWin Now offers the entire hop chamber unit for your favorite M4/M16
AEG! The ProWin Brand is known to create precision complex-shaped parts
with their refined CNC manufacturing methods which sets it apart from
other brands cast metal method.The CNC milled hop up is made from a
solid piece of stock aircraft grade aluminum which means that the
material completely consistent and eliminates the possibility of bubbles and weak areas in the metal. Anodized hard treatment in cobalt blue
color adds to durability and that custom look.
Features include:
Full CNC and anodized blue high grade aluminum body
Hop up adjustable via ring for utmost stability in comparison to the gear type
Retaining clips and pins all designed for quick change of worn hop packing/rubber
Highly durable and promotes high accuracy and lasting shooting stability
Significantly lighter and stronger material than the traditional cast metal type hop up units

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“As the owner of an airsmithy, I am very particular about the products I provide to my customers for their custom gun builds and upgrades. The ProWin hop up chamber for M4/Ver2 guns has never failed to exceed my expectations across the many different bodies I've installed it in, from all sorts of manufacturers. The orbiting adjustment dial is easier to utilize on the fly, and resists the "hop-slide" present in other units, retaining correct setting longer. Additionally, I've found that after installing the ProWin, the recipient gun has shown more consistent feeding with more brands of magazines. All in all, the ProWin M4 Hop-Up Unit is the go-to unit for The Airsmithy, to the extent that I utilize a ProWin in each of my compatible guns, whether AEG, GBBR or Polarstar/Wolverine HPA system.”

Helpful Report

Posted 8 years ago

“The ProWin chamber is a very nice product. The wheel is so much easier to use than the one on my other hop-ups and it holds its position no matter what. Overall I am very happy with it.”

Helpful Report

Posted 9 years ago

Glad you like it! We personally use these on all of our personal guns here at the shop! Love them!

Posted 9 years ago

“i have had many problems with this hop up unit. The flat hop nubs have not worked with this unit and I used both flat hops. So that is money wasted.”

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Posted 9 years ago

“Fantastic chamber. Works beautifully with a prommy purple bucking and flat hopped. Easy adjustments and no hop creep”

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Posted 9 years ago

“Amazing hop up unit! Holds its position very well, and is very well made. Definatly a great purchase!”

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Posted 9 years ago