SKU: 85458867228

Elite CNC Hop-Up Chamber for M4

Sale price$96.69 Regular price$107.43
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

Elite CNC Hop-Up Chamber for M4Prometheus ELITE CNC Hop Up Unit Compatible with standard hop up, flat hop, and R hop CNC construction Includes 2 Prometheus buckings and nubs Ball bearing spring set for secure adjustment with positive clicks Compatible with standard nozzles Widely compatible chamber design The Prometheus ELITE CNC parts series takes Prometheus designs to the highest level for those seeking the most premium hop up unit. The highly customizable ELITE hop up chamber

Prometheus ELITE CNC Hop-Up Unit

●Compatible with standard hop-up, flat hop, and R-hop

●CNC construction

●Includes 2 Prometheus buckings and nubs

●Ball-bearing spring set for secure adjustment with positive clicks

●Compatible with standard nozzles

●Widely compatible chamber design

The Prometheus ELITE CNC parts series takes Prometheus designs to the highest level for those seeking the most premium hop-up unit. The highly customizable ELITE hop-up chamber allows the use of standard, flat hop, and R-hop inner barrels and buckings without compromising performance. Use the included ball-bearing spring set for secure adjustment with positive clicks at every hop setting, or remove it for finer adjustment—the choice is yours!

Our two most popular standard buckings are included, the purple bucking and the blue bucking, covering a wide range of BB weights and hop configurations. The precision CNC-machined chamber is manufactured in Japan and is compatible with a wide variety of standard M4-type builds, including Krytac, Tokyo Marui, G&G, and many more!

■ Brand: Prometheus

■ Includes:

・ CNC Hop-Up Chamber

・ Prometheus Purple Bucking (soft)

・ Prometheus Blue 60-Degree Bucking (firm)

・ Ball-bearing spring set (removable for finer adjustment)

・ Barrel clip

・ Vertical hop tension arm

・ Hop arm lever

・ O-ring

・ Stop screw

■ JAN: 4571443182197

■ Caution:

※ Not all AEG models are fully compatible without modifications. Use the stop screw or the original barrel stabilizing springs for a secure fit.

※ Be careful not to apply silicone spray or oil inside the inner barrel or on the hop-up bucking, as this may cause inconsistencies.

※ The use of LayLax Prometheus inner barrels and hop-up buckings is recommended for optimal performance due to the preset fitting dimensions.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 85458867228

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4.7 ★★★★★
Based on 6 reviews
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Verified Purchase
Erin
Natrona Heights, US
★★★★★ 5
Great shoe
Size: 11.5 Wide, Color: Tan Leather Burnished
Very comfortable business casual shoe. Looks professional, yet stylish
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
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Verified Purchase
dch
Boise, US
★★★★★ 4
Hard to Beat for the Price
Size: 10 Wide, Color: Tan Leather Burnished
I purchased these for a business trip to Italy and wore them daily for the two weeks that I was there, during which I walked extensively. For me, there was a break-in period of a few days; before it loosens up, it will bite your heel, so I recommend wearing bandages or heel pads initially. Following the break-in, it's a very comfortable shoe and has served me well. I purchased a wide, and for this shoe, I found the width agreeable; in my experience, Cole Haan wide widths tend to be hit or miss (i.e., a wide is sometimes not all that wide). In terms of durability, I would not expect these to remain in good condition for more than a year if you wear them daily. The leather is not of high quality, but it's acceptable for the price. Expect them to crease very quickly if not using shoe trees. That doesn't bother me, but I know some find it objectionable. All in all, I like them and would buy them again. It's a comfortable alternative to traditional dress shoes for the office and works equally well for casual wear. Most higher quality options cost at least two or three times as much, and many are unavailable in a wide.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
N
Verified Purchase
Nickolas Weston
Charlottesville, US
★★★★★ 5
My favorite shoes
Size: 14 Wide, Color: White Leather
I’ve probably purchased like 40 pairs of these shoes or more. By far my favorite white sneaker. I have a large foot so the bigger sizes are appreciated. They’re versatile, literally go with anything and they are true to size. At a certain point they start to show wear and you can’t dress them up, but they last as a regular sneaker for a long time afterwards. I try to nab them on sale when they drop to $50-$70, absolute steal at that price point.
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Reviewed in the United States on May 9, 2026
R
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Ryan Miles
Bozeman, US
★★★★★ 5
Clean Look, Super Comfortable – Instantly a Favorite
Size: 9.5, Color: White Leather
These sneakers are exactly what I was looking for—sleek, minimal, and incredibly comfortable right out of the box. The white leather looks sharp and pairs easily with everything from jeans to chinos, even dressed-down office wear. What surprised me most was the comfort. The sole is lightweight with just the right amount of cushioning, making them perfect for walking around all day. I’ve worn them on long city days and never felt sore or tired. They fit true to size (I’m a 9.5 and they’re spot on), and the quality feels premium. If you're after a versatile white sneaker that balances style and comfort, these are 100% worth it.
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Reviewed in the United States on March 29, 2025
A
Verified Purchase
Alain
Massapequa, US
★★★★★ 5
Comfortable
Size: 10.5 Wide, Color: Black Leather/Black
Very comfortable shoes, you feel like walking on clouds
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026

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