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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Prowin Hop-Up Chamber for M4The ProWin M4 M16 CNC hop up chamber is a major upgrade over the stock plastic or weak cast metal hop up chamber in your AEG. Metal hop up chambers are known for providing a better air seal against the AEG gearbox and feeding much more smoothly than plastic chambers. However, many cast metal hop up chambers have weak points in the metal due to the casting process, but this issue is completely eliminated with the ProWin chamber. This hop up chamber is
The ProWin M4 / M16 CNC hop-up chamber is a major upgrade over the stock plastic or weak cast metal hop-up chamber in your AEG. Metal hop-up chambers are known for providing a better air seal against the AEG gearbox and feeding much more smoothly than plastic chambers. However, many cast metal hop-up chambers have weak points in the metal due to the casting process, but this issue is completely eliminated with the ProWin chamber. This hop-up chamber is fully CNC machined from aircraft-grade aluminum, meaning it is lightweight and durable, and the bright blue color gives your AEG a custom look.
Specifications:
Manufacturer: ProWin
Model: CNC Hop-Up Chamber M4 / M16
Color: Blue
Size: Fits Marui-style M4/M16 AEG
Package includes: one (1) hop-up chamber and parts
Features:
CNC construction
Improved air seal
Lightweight and durable
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Stylish and comfortable.
Size: 8 Wide, Color: Black/Black
Shoes look great and fits well. Definitely recommend pocking another pair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 3
Narrow for an 11.5W
Size: 11.5 Wide, Color: Navy
Nice look and material but very narrow for a wide, had to return
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026
★★★★★ 5
NIce Shoes
Size: 10, Color: Black
Very nice quality and comfort
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
★★★★★ 5
Great shoe.
Size: 11.5, Color: Navy
Perfect fit. Stylish comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
★★★★★ 5
Comfortable shoes
Size: 10.5, Color: Black
Fit well Look great Get compliments all the time
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
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