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

ProWin40058
Evike.com
4.2 stars, based on 19 reviews

$29.00

ID: 40058 (HU-PW-M4)
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.
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19 Customer Reviews

by Walter M. on 01/27/2016
"This chamber is great but if you ever lose the parts you have to buy a whole other hop up chamber! Evike should contact Prowin or Amped Airsoft to get replacement parts for this chamber. Also there are fitment issues with the Modify Baton Ryusoku Bucking and this chamber, the lips don't let BBs go through unless you really push hard on the BBs thus leading to feeding issues. Be careful with the parts and be careful of Flat Hop mods.
by Aidan S. on 01/26/2016
"I just received this hop up chamber and I installed it today. I currently have it in my 2015 Elite Force m4 cqb. This is a very nice hop up; it is well built, (one piece of solid aluminum) and very effective. I have this hop up in my gun along with a 75 degree Maple Leaf soft bucking and a 6.4 mm Prometheus brass barrel. I have yet to measure the range and accuracy improvements, but I will tell you that it was very significant. This hop up fit well in my elite force m4, but I had to jimmy it around a little. I am not going to give a list of pros and cons, but please be aware of a few things before buying this hop up.

1) the moving parts on this hop up are not assembled; you have to put it together yourself

2) there are no instructions included with the product, but there are many assembly videos on youtube

3) for those of you who are new to airsoft, you will need to buy a bucking and a hop up nub in order to use this hop up

4) finally, there is no spring included with the hop up but they are cheap and not hard to find

In closing, this is a marvelous hop up, especially when paired with a good quality bucking and inner barrel.
by James R. on 01/12/2016
"MUST READ!!!!!!!!!
This hop-up chamber is the best. Hands down. But do not buy this if you don't know how to tune a hop up. This unit does not sit perfectly with the spring around the barrel in most guns. It performs best with 2-4 small o-rings in front of it on the barrel.

My setup includes three o-rings in front of the unit with a lonex 70 degree bucking and a flat hop, partnered with an m-140 spring pushing upgraded parts I won't bore you with. This is the BEST hop-up you can get for an upgraded high quality gun. But if you are looking for a hop-up to just drop in, get the lonex hop-up. That will work great.
ProWin CNC Hopup Chamber for M4/M16 Series Airsoft AEG Rifles
ProWin CNC Hopup Chamber for M4/M16 Series Airsoft AEG Rifles

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.
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